Finding the Fourth Proportional to 111.33, 167.41 and 102.42

Step by Step Solution

1. Step 1: Write the proportion equation
   111.33 : 167.41 = 102.42 : x
2. Step 2: Convert to fraction form
   111.33/167.41 = 102.42/x
3. Step 3: Cross multiply
   111.33x = 167.41 × 102.42
4. Step 4: Simplify right side
   111.33x = 17,146.04
5. Step 5: Solve for x
   x = 17,146.04/111.33
6. Step 6: Final answer
   x = 154.01