Finding the Fourth Proportional to 111.94, 154.42 and 68.25

Step by Step Solution

1. Step 1: Write the proportion equation
   111.94 : 154.42 = 68.25 : x
2. Step 2: Convert to fraction form
   111.94/154.42 = 68.25/x
3. Step 3: Cross multiply
   111.94x = 154.42 × 68.25
4. Step 4: Simplify right side
   111.94x = 10,539.17
5. Step 5: Solve for x
   x = 10,539.17/111.94
6. Step 6: Final answer
   x = 94.15