Finding the Fourth Proportional to 532,131.92, 734,435.72 and 317,285.20

Step by Step Solution

1. Step 1: Write the proportion equation
   532,131.92 : 734,435.72 = 317,285.20 : x
2. Step 2: Convert to fraction form
   532,131.92/734,435.72 = 317,285.20/x
3. Step 3: Cross multiply
   532,131.92x = 734,435.72 × 317,285.20
4. Step 4: Simplify right side
   532,131.92x = 233,025,584,307.34
5. Step 5: Solve for x
   x = 233,025,584,307.34/532,131.92
6. Step 6: Final answer
   x = 437,909.43