Finding the Fourth Proportional to 124.56, 171.83 and 101.27

Step by Step Solution

1. Step 1: Write the proportion equation
   124.56 : 171.83 = 101.27 : x
2. Step 2: Convert to fraction form
   124.56/171.83 = 101.27/x
3. Step 3: Cross multiply
   124.56x = 171.83 × 101.27
4. Step 4: Simplify right side
   124.56x = 17,399.86
5. Step 5: Solve for x
   x = 17,399.86/124.56
6. Step 6: Final answer
   x = 139.69