Finding the Fourth Proportional to 152,863.86, 228,266.45 and 124,839.55

Step by Step Solution

1. Step 1: Write the proportion equation
   152,863.86 : 228,266.45 = 124,839.55 : x
2. Step 2: Convert to fraction form
   152,863.86/228,266.45 = 124,839.55/x
3. Step 3: Cross multiply
   152,863.86x = 228,266.45 × 124,839.55
4. Step 4: Simplify right side
   152,863.86x = 28,496,680,898.10
5. Step 5: Solve for x
   x = 28,496,680,898.10/152,863.86
6. Step 6: Final answer
   x = 186,418.69