Finding the Fourth Proportional to 12,414.56, 17,131.20 and 7,109.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,414.56 : 17,131.20 = 7,109.24 : x
2. Step 2: Convert to fraction form
   12,414.56/17,131.20 = 7,109.24/x
3. Step 3: Cross multiply
   12,414.56x = 17,131.20 × 7,109.24
4. Step 4: Simplify right side
   12,414.56x = 121,789,812.29
5. Step 5: Solve for x
   x = 121,789,812.29/12,414.56
6. Step 6: Final answer
   x = 9,810.24