Finding the Fourth Proportional to 387,332.72, 534,499.78 and 234,404.72

Step by Step Solution

1. Step 1: Write the proportion equation
   387,332.72 : 534,499.78 = 234,404.72 : x
2. Step 2: Convert to fraction form
   387,332.72/534,499.78 = 234,404.72/x
3. Step 3: Cross multiply
   387,332.72x = 534,499.78 × 234,404.72
4. Step 4: Simplify right side
   387,332.72x = 125,289,271,270.96
5. Step 5: Solve for x
   x = 125,289,271,270.96/387,332.72
6. Step 6: Final answer
   x = 323,466.79