Finding the Fourth Proportional to 113,147.74, 156,126.52 and 65,391.86

Step by Step Solution

1. Step 1: Write the proportion equation
   113,147.74 : 156,126.52 = 65,391.86 : x
2. Step 2: Convert to fraction form
   113,147.74/156,126.52 = 65,391.86/x
3. Step 3: Cross multiply
   113,147.74x = 156,126.52 × 65,391.86
4. Step 4: Simplify right side
   113,147.74x = 10,209,403,538.13
5. Step 5: Solve for x
   x = 10,209,403,538.13/113,147.74
6. Step 6: Final answer
   x = 90,230.73