Finding the Fourth Proportional to 9,399.12, 14,099.98 and 3,159.62

Step by Step Solution

1. Step 1: Write the proportion equation
   9,399.12 : 14,099.98 = 3,159.62 : x
2. Step 2: Convert to fraction form
   9,399.12/14,099.98 = 3,159.62/x
3. Step 3: Cross multiply
   9,399.12x = 14,099.98 × 3,159.62
4. Step 4: Simplify right side
   9,399.12x = 44,550,578.81
5. Step 5: Solve for x
   x = 44,550,578.81/9,399.12
6. Step 6: Final answer
   x = 4,739.87