Finding the Fourth Proportional to 111.52, 167.42 and 75.34

Step by Step Solution

1. Step 1: Write the proportion equation
   111.52 : 167.42 = 75.34 : x
2. Step 2: Convert to fraction form
   111.52/167.42 = 75.34/x
3. Step 3: Cross multiply
   111.52x = 167.42 × 75.34
4. Step 4: Simplify right side
   111.52x = 12,613.42
5. Step 5: Solve for x
   x = 12,613.42/111.52
6. Step 6: Final answer
   x = 113.10