Finding the Fourth Proportional to 8,411.31, 12,615.89 and 2,566.35

Step by Step Solution

1. Step 1: Write the proportion equation
   8,411.31 : 12,615.89 = 2,566.35 : x
2. Step 2: Convert to fraction form
   8,411.31/12,615.89 = 2,566.35/x
3. Step 3: Cross multiply
   8,411.31x = 12,615.89 × 2,566.35
4. Step 4: Simplify right side
   8,411.31x = 32,376,776.47
5. Step 5: Solve for x
   x = 32,376,776.47/8,411.31
6. Step 6: Final answer
   x = 3,849.20