Finding the Fourth Proportional to 414,909.86, 572,702.56 and 242,868.10

Step by Step Solution

1. Step 1: Write the proportion equation
   414,909.86 : 572,702.56 = 242,868.10 : x
2. Step 2: Convert to fraction form
   414,909.86/572,702.56 = 242,868.10/x
3. Step 3: Cross multiply
   414,909.86x = 572,702.56 × 242,868.10
4. Step 4: Simplify right side
   414,909.86x = 139,091,182,612.34
5. Step 5: Solve for x
   x = 139,091,182,612.34/414,909.86
6. Step 6: Final answer
   x = 335,232.29