Finding the Fourth Proportional to 72,454.68, 99,985.32 and 40,624.92

Step by Step Solution

1. Step 1: Write the proportion equation
   72,454.68 : 99,985.32 = 40,624.92 : x
2. Step 2: Convert to fraction form
   72,454.68/99,985.32 = 40,624.92/x
3. Step 3: Cross multiply
   72,454.68x = 99,985.32 × 40,624.92
4. Step 4: Simplify right side
   72,454.68x = 4,061,895,626.17
5. Step 5: Solve for x
   x = 4,061,895,626.17/72,454.68
6. Step 6: Final answer
   x = 56,061.19