Finding the Fourth Proportional to 8,850.56, 12,209.52 and 5,313.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,850.56 : 12,209.52 = 5,313.12 : x
2. Step 2: Convert to fraction form
   8,850.56/12,209.52 = 5,313.12/x
3. Step 3: Cross multiply
   8,850.56x = 12,209.52 × 5,313.12
4. Step 4: Simplify right side
   8,850.56x = 64,870,644.90
5. Step 5: Solve for x
   x = 64,870,644.90/8,850.56
6. Step 6: Final answer
   x = 7,329.55