Finding the Fourth Proportional to 12,022.72, 16,591.38 and 6,717.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,022.72 : 16,591.38 = 6,717.72 : x
2. Step 2: Convert to fraction form
   12,022.72/16,591.38 = 6,717.72/x
3. Step 3: Cross multiply
   12,022.72x = 16,591.38 × 6,717.72
4. Step 4: Simplify right side
   12,022.72x = 111,456,245.25
5. Step 5: Solve for x
   x = 111,456,245.25/12,022.72
6. Step 6: Final answer
   x = 9,270.47