Finding the Fourth Proportional to 127.73, 176.72 and 111.39

Step by Step Solution

1. Step 1: Write the proportion equation
   127.73 : 176.72 = 111.39 : x
2. Step 2: Convert to fraction form
   127.73/176.72 = 111.39/x
3. Step 3: Cross multiply
   127.73x = 176.72 × 111.39
4. Step 4: Simplify right side
   127.73x = 19,683.96
5. Step 5: Solve for x
   x = 19,683.96/127.73
6. Step 6: Final answer
   x = 154.11