Finding the Fourth Proportional to 8,616.14, 12,927.47 and 5,868.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,616.14 : 12,927.47 = 5,868.72 : x
2. Step 2: Convert to fraction form
   8,616.14/12,927.47 = 5,868.72/x
3. Step 3: Cross multiply
   8,616.14x = 12,927.47 × 5,868.72
4. Step 4: Simplify right side
   8,616.14x = 75,867,672.39
5. Step 5: Solve for x
   x = 75,867,672.39/8,616.14
6. Step 6: Final answer
   x = 8,805.30