Finding the Fourth Proportional to 8,411.57, 12,618.57 and 2,567.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,411.57 : 12,618.57 = 2,567.42 : x
2. Step 2: Convert to fraction form
   8,411.57/12,618.57 = 2,567.42/x
3. Step 3: Cross multiply
   8,411.57x = 12,618.57 × 2,567.42
4. Step 4: Simplify right side
   8,411.57x = 32,397,105.90
5. Step 5: Solve for x
   x = 32,397,105.90/8,411.57
6. Step 6: Final answer
   x = 3,851.50