Finding the Fourth Proportional to 72,152.46, 99,568.67 and 40,327.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,152.46 : 99,568.67 = 40,327.50 : x
2. Step 2: Convert to fraction form
   72,152.46/99,568.67 = 40,327.50/x
3. Step 3: Cross multiply
   72,152.46x = 99,568.67 × 40,327.50
4. Step 4: Simplify right side
   72,152.46x = 4,015,355,337.79
5. Step 5: Solve for x
   x = 4,015,355,337.79/72,152.46
6. Step 6: Final answer
   x = 55,650.98