Finding the Fourth Proportional to 127,131.43, 175,429.77 and 75,439.62

Step by Step Solution

1. Step 1: Write the proportion equation
   127,131.43 : 175,429.77 = 75,439.62 : x
2. Step 2: Convert to fraction form
   127,131.43/175,429.77 = 75,439.62/x
3. Step 3: Cross multiply
   127,131.43x = 175,429.77 × 75,439.62
4. Step 4: Simplify right side
   127,131.43x = 13,234,354,644.38
5. Step 5: Solve for x
   x = 13,234,354,644.38/127,131.43
6. Step 6: Final answer
   x = 104,099.79