Finding the Fourth Proportional to 8,861.85, 12,227.15 and 5,714.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,861.85 : 12,227.15 = 5,714.25 : x
2. Step 2: Convert to fraction form
   8,861.85/12,227.15 = 5,714.25/x
3. Step 3: Cross multiply
   8,861.85x = 12,227.15 × 5,714.25
4. Step 4: Simplify right side
   8,861.85x = 69,868,963.32
5. Step 5: Solve for x
   x = 69,868,963.32/8,861.85
6. Step 6: Final answer
   x = 7,884.24