Finding the Fourth Proportional to 12,414.10, 18,610.68 and 5,388.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,414.10 : 18,610.68 = 5,388.82 : x
2. Step 2: Convert to fraction form
   12,414.10/18,610.68 = 5,388.82/x
3. Step 3: Cross multiply
   12,414.10x = 18,610.68 × 5,388.82
4. Step 4: Simplify right side
   12,414.10x = 100,289,604.60
5. Step 5: Solve for x
   x = 100,289,604.60/12,414.10
6. Step 6: Final answer
   x = 8,078.69