Finding the Fourth Proportional to 12,082.71, 18,124.27 and 3,317.57

Step by Step Solution

1. Step 1: Write the proportion equation
   12,082.71 : 18,124.27 = 3,317.57 : x
2. Step 2: Convert to fraction form
   12,082.71/18,124.27 = 3,317.57/x
3. Step 3: Cross multiply
   12,082.71x = 18,124.27 × 3,317.57
4. Step 4: Simplify right side
   12,082.71x = 60,128,443.80
5. Step 5: Solve for x
   x = 60,128,443.80/12,082.71
6. Step 6: Final answer
   x = 4,976.40