Finding the Fourth Proportional to 111.38, 153.72 and 62.27

Step by Step Solution

1. Step 1: Write the proportion equation
   111.38 : 153.72 = 62.27 : x
2. Step 2: Convert to fraction form
   111.38/153.72 = 62.27/x
3. Step 3: Cross multiply
   111.38x = 153.72 × 62.27
4. Step 4: Simplify right side
   111.38x = 9,572.14
5. Step 5: Solve for x
   x = 9,572.14/111.38
6. Step 6: Final answer
   x = 85.94