Finding the Fourth Proportional to 111.88, 167.58 and 108.52

Step by Step Solution

1. Step 1: Write the proportion equation
   111.88 : 167.58 = 108.52 : x
2. Step 2: Convert to fraction form
   111.88/167.58 = 108.52/x
3. Step 3: Cross multiply
   111.88x = 167.58 × 108.52
4. Step 4: Simplify right side
   111.88x = 18,185.78
5. Step 5: Solve for x
   x = 18,185.78/111.88
6. Step 6: Final answer
   x = 162.55