Finding the Fourth Proportional to 12,414.63, 17,132.19 and 7,111.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,414.63 : 17,132.19 = 7,111.15 : x
2. Step 2: Convert to fraction form
   12,414.63/17,132.19 = 7,111.15/x
3. Step 3: Cross multiply
   12,414.63x = 17,132.19 × 7,111.15
4. Step 4: Simplify right side
   12,414.63x = 121,829,572.92
5. Step 5: Solve for x
   x = 121,829,572.92/12,414.63
6. Step 6: Final answer
   x = 9,813.39