Finding the Fourth Proportional to 429,142.72, 592,230.42 and 247,851.28

Step by Step Solution

1. Step 1: Write the proportion equation
   429,142.72 : 592,230.42 = 247,851.28 : x
2. Step 2: Convert to fraction form
   429,142.72/592,230.42 = 247,851.28/x
3. Step 3: Cross multiply
   429,142.72x = 592,230.42 × 247,851.28
4. Step 4: Simplify right side
   429,142.72x = 146,785,067,651.94
5. Step 5: Solve for x
   x = 146,785,067,651.94/429,142.72
6. Step 6: Final answer
   x = 342,042.54