Finding the Fourth Proportional to 11.82, 16.33 and 10.61

Step by Step Solution

1. Step 1: Write the proportion equation
   11.82 : 16.33 = 10.61 : x
2. Step 2: Convert to fraction form
   11.82/16.33 = 10.61/x
3. Step 3: Cross multiply
   11.82x = 16.33 × 10.61
4. Step 4: Simplify right side
   11.82x = 173.15
5. Step 5: Solve for x
   x = 173.15/11.82
6. Step 6: Final answer
   x = 14.65