Finding the Fourth Proportional to 12,016.56, 16,581.78 and 6,711.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,016.56 : 16,581.78 = 6,711.24 : x
2. Step 2: Convert to fraction form
   12,016.56/16,581.78 = 6,711.24/x
3. Step 3: Cross multiply
   12,016.56x = 16,581.78 × 6,711.24
4. Step 4: Simplify right side
   12,016.56x = 111,284,305.21
5. Step 5: Solve for x
   x = 111,284,305.21/12,016.56
6. Step 6: Final answer
   x = 9,260.91