Finding the Fourth Proportional to 8,856.18, 12,221.90 and 5,080.41

Step by Step Solution

1. Step 1: Write the proportion equation
   8,856.18 : 12,221.90 = 5,080.41 : x
2. Step 2: Convert to fraction form
   8,856.18/12,221.90 = 5,080.41/x
3. Step 3: Cross multiply
   8,856.18x = 12,221.90 × 5,080.41
4. Step 4: Simplify right side
   8,856.18x = 62,092,189.17
5. Step 5: Solve for x
   x = 62,092,189.17/8,856.18
6. Step 6: Final answer
   x = 7,011.17