Finding the Fourth Proportional to 11.33, 16.89 and 10.18

Step by Step Solution

1. Step 1: Write the proportion equation
   11.33 : 16.89 = 10.18 : x
2. Step 2: Convert to fraction form
   11.33/16.89 = 10.18/x
3. Step 3: Cross multiply
   11.33x = 16.89 × 10.18
4. Step 4: Simplify right side
   11.33x = 171.94
5. Step 5: Solve for x
   x = 171.94/11.33
6. Step 6: Final answer
   x = 15.18