Finding the Fourth Proportional to 142.82, 196.68 and 142.37

Step by Step Solution

1. Step 1: Write the proportion equation
   142.82 : 196.68 = 142.37 : x
2. Step 2: Convert to fraction form
   142.82/196.68 = 142.37/x
3. Step 3: Cross multiply
   142.82x = 196.68 × 142.37
4. Step 4: Simplify right side
   142.82x = 28,000.35
5. Step 5: Solve for x
   x = 28,000.35/142.82
6. Step 6: Final answer
   x = 196.06