Haylee has 3 dozen guppies in her aquarium.  Jose has half as many guppies as Haylee in his tank.  Charliz has one-third of what Jose has in his tank.  Nicolai has 4 times as many guppies as Charliz in his pond. How many guppies do the four friends have altogether?
Please reason step by step, and put your final answer within \boxed{}.
user