Finding the Fourth Proportional to 16,648.13, 22,974.42 and 9,196.61

Step by Step Solution

1. Step 1: Write the proportion equation
   16,648.13 : 22,974.42 = 9,196.61 : x
2. Step 2: Convert to fraction form
   16,648.13/22,974.42 = 9,196.61/x
3. Step 3: Cross multiply
   16,648.13x = 22,974.42 × 9,196.61
4. Step 4: Simplify right side
   16,648.13x = 211,286,665.84
5. Step 5: Solve for x
   x = 211,286,665.84/16,648.13
6. Step 6: Final answer
   x = 12,691.32