Finding the Fourth Proportional to 111.83, 154.25 and 88.49

Step by Step Solution

1. Step 1: Write the proportion equation
   111.83 : 154.25 = 88.49 : x
2. Step 2: Convert to fraction form
   111.83/154.25 = 88.49/x
3. Step 3: Cross multiply
   111.83x = 154.25 × 88.49
4. Step 4: Simplify right side
   111.83x = 13,650.36
5. Step 5: Solve for x
   x = 13,650.36/111.83
6. Step 6: Final answer
   x = 122.06