Finding the Fourth Proportional to 12,080.69, 16,665.67 and 8,545.85

Step by Step Solution

1. Step 1: Write the proportion equation
   12,080.69 : 16,665.67 = 8,545.85 : x
2. Step 2: Convert to fraction form
   12,080.69/16,665.67 = 8,545.85/x
3. Step 3: Cross multiply
   12,080.69x = 16,665.67 × 8,545.85
4. Step 4: Simplify right side
   12,080.69x = 142,422,315.97
5. Step 5: Solve for x
   x = 142,422,315.97/12,080.69
6. Step 6: Final answer
   x = 11,789.25