Finding the Fourth Proportional to 12,560.49, 17,329.92 and 8,086.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,560.49 : 17,329.92 = 8,086.83 : x
2. Step 2: Convert to fraction form
   12,560.49/17,329.92 = 8,086.83/x
3. Step 3: Cross multiply
   12,560.49x = 17,329.92 × 8,086.83
4. Step 4: Simplify right side
   12,560.49x = 140,144,116.95
5. Step 5: Solve for x
   x = 140,144,116.95/12,560.49
6. Step 6: Final answer
   x = 11,157.54