Finding the Fourth Proportional to 8,874.40, 12,242.46 and 5,516.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,874.40 : 12,242.46 = 5,516.12 : x
2. Step 2: Convert to fraction form
   8,874.40/12,242.46 = 5,516.12/x
3. Step 3: Cross multiply
   8,874.40x = 12,242.46 × 5,516.12
4. Step 4: Simplify right side
   8,874.40x = 67,530,878.46
5. Step 5: Solve for x
   x = 67,530,878.46/8,874.40
6. Step 6: Final answer
   x = 7,609.63