Finding the Fourth Proportional to 12,082.82, 18,123.42 and 3,317

Step by Step Solution

1. Step 1: Write the proportion equation
   12,082.82 : 18,123.42 = 3,317 : x
2. Step 2: Convert to fraction form
   12,082.82/18,123.42 = 3,317/x
3. Step 3: Cross multiply
   12,082.82x = 18,123.42 × 3,317
4. Step 4: Simplify right side
   12,082.82x = 60,115,384.14
5. Step 5: Solve for x
   x = 60,115,384.14/12,082.82
6. Step 6: Final answer
   x = 4,975.28