Finding the Fourth Proportional to 8,429.01, 12,643.04 and 2,585.61

Step by Step Solution

1. Step 1: Write the proportion equation
   8,429.01 : 12,643.04 = 2,585.61 : x
2. Step 2: Convert to fraction form
   8,429.01/12,643.04 = 2,585.61/x
3. Step 3: Cross multiply
   8,429.01x = 12,643.04 × 2,585.61
4. Step 4: Simplify right side
   8,429.01x = 32,689,957.73
5. Step 5: Solve for x
   x = 32,689,957.73/8,429.01
6. Step 6: Final answer
   x = 3,878.27