Finding the Fourth Proportional to 111.72, 167.38 and 75.08

Step by Step Solution

1. Step 1: Write the proportion equation
   111.72 : 167.38 = 75.08 : x
2. Step 2: Convert to fraction form
   111.72/167.38 = 75.08/x
3. Step 3: Cross multiply
   111.72x = 167.38 × 75.08
4. Step 4: Simplify right side
   111.72x = 12,566.89
5. Step 5: Solve for x
   x = 12,566.89/111.72
6. Step 6: Final answer
   x = 112.49