Finding the Fourth Proportional to 12,260.18, 18,377.51 and 5,680.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,260.18 : 18,377.51 = 5,680.96 : x
2. Step 2: Convert to fraction form
   12,260.18/18,377.51 = 5,680.96/x
3. Step 3: Cross multiply
   12,260.18x = 18,377.51 × 5,680.96
4. Step 4: Simplify right side
   12,260.18x = 104,401,824.86
5. Step 5: Solve for x
   x = 104,401,824.86/12,260.18
6. Step 6: Final answer
   x = 8,515.52