Finding the Fourth Proportional to 196.72, 271.29 and 134.42

Step by Step Solution

1. Step 1: Write the proportion equation
   196.72 : 271.29 = 134.42 : x
2. Step 2: Convert to fraction form
   196.72/271.29 = 134.42/x
3. Step 3: Cross multiply
   196.72x = 271.29 × 134.42
4. Step 4: Simplify right side
   196.72x = 36,466.80
5. Step 5: Solve for x
   x = 36,466.80/196.72
6. Step 6: Final answer
   x = 185.37