Finding the Fourth Proportional to 111.57, 153.98 and 67.94

Step by Step Solution

1. Step 1: Write the proportion equation
   111.57 : 153.98 = 67.94 : x
2. Step 2: Convert to fraction form
   111.57/153.98 = 67.94/x
3. Step 3: Cross multiply
   111.57x = 153.98 × 67.94
4. Step 4: Simplify right side
   111.57x = 10,460.80
5. Step 5: Solve for x
   x = 10,460.80/111.57
6. Step 6: Final answer
   x = 93.76