Finding the Fourth Proportional to 196.32, 270.94 and 113.42

Step by Step Solution

1. Step 1: Write the proportion equation
   196.32 : 270.94 = 113.42 : x
2. Step 2: Convert to fraction form
   196.32/270.94 = 113.42/x
3. Step 3: Cross multiply
   196.32x = 270.94 × 113.42
4. Step 4: Simplify right side
   196.32x = 30,730.01
5. Step 5: Solve for x
   x = 30,730.01/196.32
6. Step 6: Final answer
   x = 156.53