Finding the Fourth Proportional to 72,081.59, 99,472.68 and 40,250.48

Step by Step Solution

1. Step 1: Write the proportion equation
   72,081.59 : 99,472.68 = 40,250.48 : x
2. Step 2: Convert to fraction form
   72,081.59/99,472.68 = 40,250.48/x
3. Step 3: Cross multiply
   72,081.59x = 99,472.68 × 40,250.48
4. Step 4: Simplify right side
   72,081.59x = 4,003,822,915.63
5. Step 5: Solve for x
   x = 4,003,822,915.63/72,081.59
6. Step 6: Final answer
   x = 55,545.71