Finding the Fourth Proportional to 8,429.59, 12,648.03 and 3,234.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,429.59 : 12,648.03 = 3,234.25 : x
2. Step 2: Convert to fraction form
   8,429.59/12,648.03 = 3,234.25/x
3. Step 3: Cross multiply
   8,429.59x = 12,648.03 × 3,234.25
4. Step 4: Simplify right side
   8,429.59x = 40,906,891.03
5. Step 5: Solve for x
   x = 40,906,891.03/8,429.59
6. Step 6: Final answer
   x = 4,852.77