Finding the Fourth Proportional to 123.37, 170.27 and 111.83

Step by Step Solution

1. Step 1: Write the proportion equation
   123.37 : 170.27 = 111.83 : x
2. Step 2: Convert to fraction form
   123.37/170.27 = 111.83/x
3. Step 3: Cross multiply
   123.37x = 170.27 × 111.83
4. Step 4: Simplify right side
   123.37x = 19,040.30
5. Step 5: Solve for x
   x = 19,040.30/123.37
6. Step 6: Final answer
   x = 154.34