Finding the Fourth Proportional to 111.57, 167.37 and 60.22

Step by Step Solution

1. Step 1: Write the proportion equation
   111.57 : 167.37 = 60.22 : x
2. Step 2: Convert to fraction form
   111.57/167.37 = 60.22/x
3. Step 3: Cross multiply
   111.57x = 167.37 × 60.22
4. Step 4: Simplify right side
   111.57x = 10,079.02
5. Step 5: Solve for x
   x = 10,079.02/111.57
6. Step 6: Final answer
   x = 90.34