Finding the Fourth Proportional to 113,126.50, 156,128.34 and 65,380.24

Step by Step Solution

1. Step 1: Write the proportion equation
   113,126.50 : 156,128.34 = 65,380.24 : x
2. Step 2: Convert to fraction form
   113,126.50/156,128.34 = 65,380.24/x
3. Step 3: Cross multiply
   113,126.50x = 156,128.34 × 65,380.24
4. Step 4: Simplify right side
   113,126.50x = 10,207,708,340.00
5. Step 5: Solve for x
   x = 10,207,708,340.00/113,126.50
6. Step 6: Final answer
   x = 90,232.69