Finding the Fourth Proportional to 8,429.50, 12,643.22 and 2,882.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,429.50 : 12,643.22 = 2,882.72 : x
2. Step 2: Convert to fraction form
   8,429.50/12,643.22 = 2,882.72/x
3. Step 3: Cross multiply
   8,429.50x = 12,643.22 × 2,882.72
4. Step 4: Simplify right side
   8,429.50x = 36,446,863.16
5. Step 5: Solve for x
   x = 36,446,863.16/8,429.50
6. Step 6: Final answer
   x = 4,323.73