Finding the Fourth Proportional to 111.64, 154.06 and 67.94

Step by Step Solution

1. Step 1: Write the proportion equation
   111.64 : 154.06 = 67.94 : x
2. Step 2: Convert to fraction form
   111.64/154.06 = 67.94/x
3. Step 3: Cross multiply
   111.64x = 154.06 × 67.94
4. Step 4: Simplify right side
   111.64x = 10,466.50
5. Step 5: Solve for x
   x = 10,466.50/111.64
6. Step 6: Final answer
   x = 93.76