Finding the Fourth Proportional to 8,082.16, 12,123.48 and 3,151.60

Step by Step Solution

1. Step 1: Write the proportion equation
   8,082.16 : 12,123.48 = 3,151.60 : x
2. Step 2: Convert to fraction form
   8,082.16/12,123.48 = 3,151.60/x
3. Step 3: Cross multiply
   8,082.16x = 12,123.48 × 3,151.60
4. Step 4: Simplify right side
   8,082.16x = 38,208,359.57
5. Step 5: Solve for x
   x = 38,208,359.57/8,082.16
6. Step 6: Final answer
   x = 4,727.49