Finding the Fourth Proportional to 111.58, 167.18 and 75.54

Step by Step Solution

1. Step 1: Write the proportion equation
   111.58 : 167.18 = 75.54 : x
2. Step 2: Convert to fraction form
   111.58/167.18 = 75.54/x
3. Step 3: Cross multiply
   111.58x = 167.18 × 75.54
4. Step 4: Simplify right side
   111.58x = 12,628.78
5. Step 5: Solve for x
   x = 12,628.78/111.58
6. Step 6: Final answer
   x = 113.18