He died and left behind a wife, two sons and three daughters
Question

                My full brother died and left behind a wife, a mother, two sons who have not reached the age of maturity and three daughters, one of whom has reached the age of maturity. I sold some property of his which is worth 190,000 riyals, which I spent on his children and wife, and I used it to pay off his debts for nearly eight months, until they started to receive his pension. Now I want to give to each heir his share of the inheritance, and there is approximately 160,000 left. How much is the share of each one?.
Praise be to Allah.Firstly: 
No 
    differentiation is made between minors and adults with regard to 
    inheritance. Small children have their share of the inheritance just like 
    adults. 
But a small 
    child should not be given his share in his hand, rather it should be given 
    to his guardian who spends on him, and reference should be made to the court 
    that deals with that, so as to protect the orphan’s wealth. 
Secondly: 
If the heirs 
    are those whom you mentioned, then the wife gets one-eighth, because Allaah 
    says (interpretation of the meaning): 
“In that 
    which you leave, their (your wives) share is a fourth if you leave no child; 
    but if you leave a child, they get an eighth of that which you leave”
[al-Nisa’ 
    4:12]
The mother 
    gets one-sixth, because Allaah says (interpretation of the meaning): 
“For 
    parents, a sixth share of inheritance to each if the deceased left children”
    [al-Nisa’ 4:11]
With regard 
    to the remaining children, each male gets the share of two females, because 
    Allaah says (interpretation of the meaning): 
“Allaah 
    commands you as regards your children’s (inheritance): to the male, a 
    portion equal to that of two females”
[al-Nisa’ 
    4:11]
Thirdly:  
With regard 
    to dividing the inheritance asked about here, it should be divided into 24 
    equal parts, of which the wife gets three parts, the mother gets four, and 
    the remainder (seventeen parts) should be divided among the children, with 
    each male getting the share of two females. 
And Allaah 
    knows best.