Finding the Fourth Proportional to 18,456.83, 25,461.56 and 12,080.61

Step by Step Solution

1. Step 1: Write the proportion equation
   18,456.83 : 25,461.56 = 12,080.61 : x
2. Step 2: Convert to fraction form
   18,456.83/25,461.56 = 12,080.61/x
3. Step 3: Cross multiply
   18,456.83x = 25,461.56 × 12,080.61
4. Step 4: Simplify right side
   18,456.83x = 307,591,206.55
5. Step 5: Solve for x
   x = 307,591,206.55/18,456.83
6. Step 6: Final answer
   x = 16,665.45