Finding the Fourth Proportional to 12,414.72, 17,136.72 and 8,224.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,414.72 : 17,136.72 = 8,224.32 : x
2. Step 2: Convert to fraction form
   12,414.72/17,136.72 = 8,224.32/x
3. Step 3: Cross multiply
   12,414.72x = 17,136.72 × 8,224.32
4. Step 4: Simplify right side
   12,414.72x = 140,937,869.03
5. Step 5: Solve for x
   x = 140,937,869.03/12,414.72
6. Step 6: Final answer
   x = 11,352.48