Finding the Fourth Proportional to 12,280.27, 18,417.88 and 3,513.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,280.27 : 18,417.88 = 3,513.24 : x
2. Step 2: Convert to fraction form
   12,280.27/18,417.88 = 3,513.24/x
3. Step 3: Cross multiply
   12,280.27x = 18,417.88 × 3,513.24
4. Step 4: Simplify right side
   12,280.27x = 64,706,432.73
5. Step 5: Solve for x
   x = 64,706,432.73/12,280.27
6. Step 6: Final answer
   x = 5,269.14