Finding the Fourth Proportional to 12,802.43, 17,656.31 and 8,324.55

Step by Step Solution

1. Step 1: Write the proportion equation
   12,802.43 : 17,656.31 = 8,324.55 : x
2. Step 2: Convert to fraction form
   12,802.43/17,656.31 = 8,324.55/x
3. Step 3: Cross multiply
   12,802.43x = 17,656.31 × 8,324.55
4. Step 4: Simplify right side
   12,802.43x = 146,980,856.22
5. Step 5: Solve for x
   x = 146,980,856.22/12,802.43
6. Step 6: Final answer
   x = 11,480.70