Finding the Fourth Proportional to 8,864.74, 12,229.91 and 5,086.54

Step by Step Solution

1. Step 1: Write the proportion equation
   8,864.74 : 12,229.91 = 5,086.54 : x
2. Step 2: Convert to fraction form
   8,864.74/12,229.91 = 5,086.54/x
3. Step 3: Cross multiply
   8,864.74x = 12,229.91 × 5,086.54
4. Step 4: Simplify right side
   8,864.74x = 62,207,870.40
5. Step 5: Solve for x
   x = 62,207,870.40/8,864.74
6. Step 6: Final answer
   x = 7,017.45