Finding the Fourth Proportional to 124.33, 171.72 and 111.37

Step by Step Solution

1. Step 1: Write the proportion equation
   124.33 : 171.72 = 111.37 : x
2. Step 2: Convert to fraction form
   124.33/171.72 = 111.37/x
3. Step 3: Cross multiply
   124.33x = 171.72 × 111.37
4. Step 4: Simplify right side
   124.33x = 19,124.46
5. Step 5: Solve for x
   x = 19,124.46/124.33
6. Step 6: Final answer
   x = 153.82