Finding the Fourth Proportional to 8,581.32, 12,870.17 and 2,423.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,581.32 : 12,870.17 = 2,423.88 : x
2. Step 2: Convert to fraction form
   8,581.32/12,870.17 = 2,423.88/x
3. Step 3: Cross multiply
   8,581.32x = 12,870.17 × 2,423.88
4. Step 4: Simplify right side
   8,581.32x = 31,195,689.37
5. Step 5: Solve for x
   x = 31,195,689.37/8,581.32
6. Step 6: Final answer
   x = 3,635.30