Finding the Fourth Proportional to 429,078.24, 592,155.78 and 238,092.12

Step by Step Solution

1. Step 1: Write the proportion equation
   429,078.24 : 592,155.78 = 238,092.12 : x
2. Step 2: Convert to fraction form
   429,078.24/592,155.78 = 238,092.12/x
3. Step 3: Cross multiply
   429,078.24x = 592,155.78 × 238,092.12
4. Step 4: Simplify right side
   429,078.24x = 140,987,625,030.45
5. Step 5: Solve for x
   x = 140,987,625,030.45/429,078.24
6. Step 6: Final answer
   x = 328,582.56