Finding the Fourth Proportional to 8,568.57, 12,851.55 and 2,724.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,568.57 : 12,851.55 = 2,724.42 : x
2. Step 2: Convert to fraction form
   8,568.57/12,851.55 = 2,724.42/x
3. Step 3: Cross multiply
   8,568.57x = 12,851.55 × 2,724.42
4. Step 4: Simplify right side
   8,568.57x = 35,013,019.85
5. Step 5: Solve for x
   x = 35,013,019.85/8,568.57
6. Step 6: Final answer
   x = 4,086.22