Finding the Fourth Proportional to 113,339.72, 156,399.17 and 65,596.02

Step by Step Solution

1. Step 1: Write the proportion equation
   113,339.72 : 156,399.17 = 65,596.02 : x
2. Step 2: Convert to fraction form
   113,339.72/156,399.17 = 65,596.02/x
3. Step 3: Cross multiply
   113,339.72x = 156,399.17 × 65,596.02
4. Step 4: Simplify right side
   113,339.72x = 10,259,162,755.32
5. Step 5: Solve for x
   x = 10,259,162,755.32/113,339.72
6. Step 6: Final answer
   x = 90,516.93