Finding the Fourth Proportional to 152,800.84, 229,248.20 and 72,940.72

Step by Step Solution

1. Step 1: Write the proportion equation
   152,800.84 : 229,248.20 = 72,940.72 : x
2. Step 2: Convert to fraction form
   152,800.84/229,248.20 = 72,940.72/x
3. Step 3: Cross multiply
   152,800.84x = 229,248.20 × 72,940.72
4. Step 4: Simplify right side
   152,800.84x = 16,721,528,766.70
5. Step 5: Solve for x
   x = 16,721,528,766.70/152,800.84
6. Step 6: Final answer
   x = 109,433.49