Finding the Fourth Proportional to 111.06, 153.37 and 92.42

Step by Step Solution

1. Step 1: Write the proportion equation
   111.06 : 153.37 = 92.42 : x
2. Step 2: Convert to fraction form
   111.06/153.37 = 92.42/x
3. Step 3: Cross multiply
   111.06x = 153.37 × 92.42
4. Step 4: Simplify right side
   111.06x = 14,174.61
5. Step 5: Solve for x
   x = 14,174.61/111.06
6. Step 6: Final answer
   x = 127.63