Finding the Fourth Proportional to 329,787.60, 494,018.01 and 249,962.10

Step by Step Solution

1. Step 1: Write the proportion equation
   329,787.60 : 494,018.01 = 249,962.10 : x
2. Step 2: Convert to fraction form
   329,787.60/494,018.01 = 249,962.10/x
3. Step 3: Cross multiply
   329,787.60x = 494,018.01 × 249,962.10
4. Step 4: Simplify right side
   329,787.60x = 123,485,780,846.72
5. Step 5: Solve for x
   x = 123,485,780,846.72/329,787.60
6. Step 6: Final answer
   x = 374,440.34