Finding the Fourth Proportional to 111.18, 153.48 and 67.54

Step by Step Solution

1. Step 1: Write the proportion equation
   111.18 : 153.48 = 67.54 : x
2. Step 2: Convert to fraction form
   111.18/153.48 = 67.54/x
3. Step 3: Cross multiply
   111.18x = 153.48 × 67.54
4. Step 4: Simplify right side
   111.18x = 10,366.04
5. Step 5: Solve for x
   x = 10,366.04/111.18
6. Step 6: Final answer
   x = 93.24