Finding the Fourth Proportional to 111.75, 154.18 and 67.47

Step by Step Solution

1. Step 1: Write the proportion equation
   111.75 : 154.18 = 67.47 : x
2. Step 2: Convert to fraction form
   111.75/154.18 = 67.47/x
3. Step 3: Cross multiply
   111.75x = 154.18 × 67.47
4. Step 4: Simplify right side
   111.75x = 10,402.52
5. Step 5: Solve for x
   x = 10,402.52/111.75
6. Step 6: Final answer
   x = 93.09