Finding the Fourth Proportional to 11,922.30, 16,452.78 and 6,617.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,922.30 : 16,452.78 = 6,617.12 : x
2. Step 2: Convert to fraction form
   11,922.30/16,452.78 = 6,617.12/x
3. Step 3: Cross multiply
   11,922.30x = 16,452.78 × 6,617.12
4. Step 4: Simplify right side
   11,922.30x = 108,870,019.59
5. Step 5: Solve for x
   x = 108,870,019.59/11,922.30
6. Step 6: Final answer
   x = 9,131.63