Finding the Fourth Proportional to 12,082.76, 18,122.04 and 3,198.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,082.76 : 18,122.04 = 3,198.18 : x
2. Step 2: Convert to fraction form
   12,082.76/18,122.04 = 3,198.18/x
3. Step 3: Cross multiply
   12,082.76x = 18,122.04 × 3,198.18
4. Step 4: Simplify right side
   12,082.76x = 57,957,545.89
5. Step 5: Solve for x
   x = 57,957,545.89/12,082.76
6. Step 6: Final answer
   x = 4,796.71