Finding the Fourth Proportional to 115,399.46, 159,151.56 and 75,098.72

Step by Step Solution

1. Step 1: Write the proportion equation
   115,399.46 : 159,151.56 = 75,098.72 : x
2. Step 2: Convert to fraction form
   115,399.46/159,151.56 = 75,098.72/x
3. Step 3: Cross multiply
   115,399.46x = 159,151.56 × 75,098.72
4. Step 4: Simplify right side
   115,399.46x = 11,952,078,442.00
5. Step 5: Solve for x
   x = 11,952,078,442.00/115,399.46
6. Step 6: Final answer
   x = 103,571.36