Finding the Fourth Proportional to 623,915.59, 861,003.52 and 337,435.68

Step by Step Solution

1. Step 1: Write the proportion equation
   623,915.59 : 861,003.52 = 337,435.68 : x
2. Step 2: Convert to fraction form
   623,915.59/861,003.52 = 337,435.68/x
3. Step 3: Cross multiply
   623,915.59x = 861,003.52 × 337,435.68
4. Step 4: Simplify right side
   623,915.59x = 290,533,308,253.59
5. Step 5: Solve for x
   x = 290,533,308,253.59/623,915.59
6. Step 6: Final answer
   x = 465,661.24