Finding the Fourth Proportional to 142.48, 196.69 and 96.09

Step by Step Solution

1. Step 1: Write the proportion equation
   142.48 : 196.69 = 96.09 : x
2. Step 2: Convert to fraction form
   142.48/196.69 = 96.09/x
3. Step 3: Cross multiply
   142.48x = 196.69 × 96.09
4. Step 4: Simplify right side
   142.48x = 18,900.25
5. Step 5: Solve for x
   x = 18,900.25/142.48
6. Step 6: Final answer
   x = 132.66