Finding the Fourth Proportional to 127.82, 190.54 and 122.42

Step by Step Solution

1. Step 1: Write the proportion equation
   127.82 : 190.54 = 122.42 : x
2. Step 2: Convert to fraction form
   127.82/190.54 = 122.42/x
3. Step 3: Cross multiply
   127.82x = 190.54 × 122.42
4. Step 4: Simplify right side
   127.82x = 23,325.91
5. Step 5: Solve for x
   x = 23,325.91/127.82
6. Step 6: Final answer
   x = 182.49