Finding the Fourth Proportional to 8,429.29, 12,637.86 and 2,582.71

Step by Step Solution

1. Step 1: Write the proportion equation
   8,429.29 : 12,637.86 = 2,582.71 : x
2. Step 2: Convert to fraction form
   8,429.29/12,637.86 = 2,582.71/x
3. Step 3: Cross multiply
   8,429.29x = 12,637.86 × 2,582.71
4. Step 4: Simplify right side
   8,429.29x = 32,639,927.40
5. Step 5: Solve for x
   x = 32,639,927.40/8,429.29
6. Step 6: Final answer
   x = 3,872.20