Finding the Fourth Proportional to 12,086.66, 16,680.12 and 7,608.71

Step by Step Solution

1. Step 1: Write the proportion equation
   12,086.66 : 16,680.12 = 7,608.71 : x
2. Step 2: Convert to fraction form
   12,086.66/16,680.12 = 7,608.71/x
3. Step 3: Cross multiply
   12,086.66x = 16,680.12 × 7,608.71
4. Step 4: Simplify right side
   12,086.66x = 126,914,195.85
5. Step 5: Solve for x
   x = 126,914,195.85/12,086.66
6. Step 6: Final answer
   x = 10,500.35