Finding the Fourth Proportional to 142.43, 196.56 and 95.73

Step by Step Solution

1. Step 1: Write the proportion equation
   142.43 : 196.56 = 95.73 : x
2. Step 2: Convert to fraction form
   142.43/196.56 = 95.73/x
3. Step 3: Cross multiply
   142.43x = 196.56 × 95.73
4. Step 4: Simplify right side
   142.43x = 18,816.69
5. Step 5: Solve for x
   x = 18,816.69/142.43
6. Step 6: Final answer
   x = 132.11