Finding the Fourth Proportional to 11,922.72, 16,452.72 and 6,617.28

Step by Step Solution

1. Step 1: Write the proportion equation
   11,922.72 : 16,452.72 = 6,617.28 : x
2. Step 2: Convert to fraction form
   11,922.72/16,452.72 = 6,617.28/x
3. Step 3: Cross multiply
   11,922.72x = 16,452.72 × 6,617.28
4. Step 4: Simplify right side
   11,922.72x = 108,872,255.00
5. Step 5: Solve for x
   x = 108,872,255.00/11,922.72
6. Step 6: Final answer
   x = 9,131.49