Finding the Fourth Proportional to 152,604.03, 228,829.46 and 72,618.15

Step by Step Solution

1. Step 1: Write the proportion equation
   152,604.03 : 228,829.46 = 72,618.15 : x
2. Step 2: Convert to fraction form
   152,604.03/228,829.46 = 72,618.15/x
3. Step 3: Cross multiply
   152,604.03x = 228,829.46 × 72,618.15
4. Step 4: Simplify right side
   152,604.03x = 16,617,171,687.61
5. Step 5: Solve for x
   x = 16,617,171,687.61/152,604.03
6. Step 6: Final answer
   x = 108,890.78