Finding the Fourth Proportional to 8,638.16, 12,957.72 and 2,482

Step by Step Solution

1. Step 1: Write the proportion equation
   8,638.16 : 12,957.72 = 2,482 : x
2. Step 2: Convert to fraction form
   8,638.16/12,957.72 = 2,482/x
3. Step 3: Cross multiply
   8,638.16x = 12,957.72 × 2,482
4. Step 4: Simplify right side
   8,638.16x = 32,161,061.04
5. Step 5: Solve for x
   x = 32,161,061.04/8,638.16
6. Step 6: Final answer
   x = 3,723.14