Finding the Fourth Proportional to 413,078.94, 570,002.67 and 231,753.15

Step by Step Solution

1. Step 1: Write the proportion equation
   413,078.94 : 570,002.67 = 231,753.15 : x
2. Step 2: Convert to fraction form
   413,078.94/570,002.67 = 231,753.15/x
3. Step 3: Cross multiply
   413,078.94x = 570,002.67 × 231,753.15
4. Step 4: Simplify right side
   413,078.94x = 132,099,914,280.91
5. Step 5: Solve for x
   x = 132,099,914,280.91/413,078.94
6. Step 6: Final answer
   x = 319,793.39