The fourth proportional to 7, 9, 14 is:	Choose the correct choice:
A) 10	B) 12	C) 14	D) 16	E) 18
Let the fourth proportional to 7, 9, 14 be x.   Then, 7 : 9 : 14 : x   7x = (9 x 14)   x =	(9 x 14)/7   x=126/7= 
<gadget id="calculator">126/7</gadget>
<output>18</output>
18   Answer: Option 14
<result>C</result>
The fourth proportional to 7, 9, 14 is: