Finding the Fourth Proportional to 113,128.55, 156,082.27 and 65,364.47

Step by Step Solution

1. Step 1: Write the proportion equation
   113,128.55 : 156,082.27 = 65,364.47 : x
2. Step 2: Convert to fraction form
   113,128.55/156,082.27 = 65,364.47/x
3. Step 3: Cross multiply
   113,128.55x = 156,082.27 × 65,364.47
4. Step 4: Simplify right side
   113,128.55x = 10,202,234,854.95
5. Step 5: Solve for x
   x = 10,202,234,854.95/113,128.55
6. Step 6: Final answer
   x = 90,182.67