Finding the Fourth Proportional to 111.95, 154.49 and 65.33

Step by Step Solution

1. Step 1: Write the proportion equation
   111.95 : 154.49 = 65.33 : x
2. Step 2: Convert to fraction form
   111.95/154.49 = 65.33/x
3. Step 3: Cross multiply
   111.95x = 154.49 × 65.33
4. Step 4: Simplify right side
   111.95x = 10,092.83
5. Step 5: Solve for x
   x = 10,092.83/111.95
6. Step 6: Final answer
   x = 90.16