Finding the Fourth Proportional to 111.48, 167.25 and 60.15

Step by Step Solution

1. Step 1: Write the proportion equation
   111.48 : 167.25 = 60.15 : x
2. Step 2: Convert to fraction form
   111.48/167.25 = 60.15/x
3. Step 3: Cross multiply
   111.48x = 167.25 × 60.15
4. Step 4: Simplify right side
   111.48x = 10,060.09
5. Step 5: Solve for x
   x = 10,060.09/111.48
6. Step 6: Final answer
   x = 90.24