Finding the Fourth Proportional to 111.61, 154.07 and 67.94

Step by Step Solution

1. Step 1: Write the proportion equation
   111.61 : 154.07 = 67.94 : x
2. Step 2: Convert to fraction form
   111.61/154.07 = 67.94/x
3. Step 3: Cross multiply
   111.61x = 154.07 × 67.94
4. Step 4: Simplify right side
   111.61x = 10,467.52
5. Step 5: Solve for x
   x = 10,467.52/111.61
6. Step 6: Final answer
   x = 93.79