Finding the Fourth Proportional to 439,951.10, 607,132.50 and 238,747.10

Step by Step Solution

1. Step 1: Write the proportion equation
   439,951.10 : 607,132.50 = 238,747.10 : x
2. Step 2: Convert to fraction form
   439,951.10/607,132.50 = 238,747.10/x
3. Step 3: Cross multiply
   439,951.10x = 607,132.50 × 238,747.10
4. Step 4: Simplify right side
   439,951.10x = 144,951,119,759.79
5. Step 5: Solve for x
   x = 144,951,119,759.79/439,951.10
6. Step 6: Final answer
   x = 329,470.98