Finding the Fourth Proportional to 72,082.98, 99,472.05 and 40,251.06

Step by Step Solution

1. Step 1: Write the proportion equation
   72,082.98 : 99,472.05 = 40,251.06 : x
2. Step 2: Convert to fraction form
   72,082.98/99,472.05 = 40,251.06/x
3. Step 3: Cross multiply
   72,082.98x = 99,472.05 × 40,251.06
4. Step 4: Simplify right side
   72,082.98x = 4,003,855,452.87
5. Step 5: Solve for x
   x = 4,003,855,452.87/72,082.98
6. Step 6: Final answer
   x = 55,545.09