Finding the Fourth Proportional to 111.88, 167.84 and 60.49

Step by Step Solution

1. Step 1: Write the proportion equation
   111.88 : 167.84 = 60.49 : x
2. Step 2: Convert to fraction form
   111.88/167.84 = 60.49/x
3. Step 3: Cross multiply
   111.88x = 167.84 × 60.49
4. Step 4: Simplify right side
   111.88x = 10,151.50
5. Step 5: Solve for x
   x = 10,151.50/111.88
6. Step 6: Final answer
   x = 90.74