Finding the Fourth Proportional to 12,255.30, 18,358.82 and 8,082.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,255.30 : 18,358.82 = 8,082.56 : x
2. Step 2: Convert to fraction form
   12,255.30/18,358.82 = 8,082.56/x
3. Step 3: Cross multiply
   12,255.30x = 18,358.82 × 8,082.56
4. Step 4: Simplify right side
   12,255.30x = 148,386,264.18
5. Step 5: Solve for x
   x = 148,386,264.18/12,255.30
6. Step 6: Final answer
   x = 12,107.93