Finding the Fourth Proportional to 8,411.46, 12,617.90 and 2,171.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,411.46 : 12,617.90 = 2,171.42 : x
2. Step 2: Convert to fraction form
   8,411.46/12,617.90 = 2,171.42/x
3. Step 3: Cross multiply
   8,411.46x = 12,617.90 × 2,171.42
4. Step 4: Simplify right side
   8,411.46x = 27,398,760.42
5. Step 5: Solve for x
   x = 27,398,760.42/8,411.46
6. Step 6: Final answer
   x = 3,257.31