Finding the Fourth Proportional to 111.60, 167.25 and 60.17

Step by Step Solution

1. Step 1: Write the proportion equation
   111.60 : 167.25 = 60.17 : x
2. Step 2: Convert to fraction form
   111.60/167.25 = 60.17/x
3. Step 3: Cross multiply
   111.60x = 167.25 × 60.17
4. Step 4: Simplify right side
   111.60x = 10,062.60
5. Step 5: Solve for x
   x = 10,062.60/111.60
6. Step 6: Final answer
   x = 90.17