Finding the Fourth Proportional to 196.34, 270.82 and 113.42

Step by Step Solution

1. Step 1: Write the proportion equation
   196.34 : 270.82 = 113.42 : x
2. Step 2: Convert to fraction form
   196.34/270.82 = 113.42/x
3. Step 3: Cross multiply
   196.34x = 270.82 × 113.42
4. Step 4: Simplify right side
   196.34x = 30,717.22
5. Step 5: Solve for x
   x = 30,717.22/196.34
6. Step 6: Final answer
   x = 156.45