Finding the Fourth Proportional to 8,861.14, 12,228.89 and 5,084.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,861.14 : 12,228.89 = 5,084.28 : x
2. Step 2: Convert to fraction form
   8,861.14/12,228.89 = 5,084.28/x
3. Step 3: Cross multiply
   8,861.14x = 12,228.89 × 5,084.28
4. Step 4: Simplify right side
   8,861.14x = 62,175,100.85
5. Step 5: Solve for x
   x = 62,175,100.85/8,861.14
6. Step 6: Final answer
   x = 7,016.60