Finding the Fourth Proportional to 8,510.47, 12,766.92 and 2,665.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,510.47 : 12,766.92 = 2,665.10 : x
2. Step 2: Convert to fraction form
   8,510.47/12,766.92 = 2,665.10/x
3. Step 3: Cross multiply
   8,510.47x = 12,766.92 × 2,665.10
4. Step 4: Simplify right side
   8,510.47x = 34,025,140.42
5. Step 5: Solve for x
   x = 34,025,140.42/8,510.47
6. Step 6: Final answer
   x = 3,998.03