Finding the Fourth Proportional to 113,620.32, 156,828.96 and 65,884.32

Step by Step Solution

1. Step 1: Write the proportion equation
   113,620.32 : 156,828.96 = 65,884.32 : x
2. Step 2: Convert to fraction form
   113,620.32/156,828.96 = 65,884.32/x
3. Step 3: Cross multiply
   113,620.32x = 156,828.96 × 65,884.32
4. Step 4: Simplify right side
   113,620.32x = 10,332,569,385.91
5. Step 5: Solve for x
   x = 10,332,569,385.91/113,620.32
6. Step 6: Final answer
   x = 90,939.45