Finding the Fourth Proportional to 111.38, 167.24 and 72.95

Step by Step Solution

1. Step 1: Write the proportion equation
   111.38 : 167.24 = 72.95 : x
2. Step 2: Convert to fraction form
   111.38/167.24 = 72.95/x
3. Step 3: Cross multiply
   111.38x = 167.24 × 72.95
4. Step 4: Simplify right side
   111.38x = 12,200.76
5. Step 5: Solve for x
   x = 12,200.76/111.38
6. Step 6: Final answer
   x = 109.54