Finding the Fourth Proportional to 196.02, 270.55 and 113.15

Step by Step Solution

1. Step 1: Write the proportion equation
   196.02 : 270.55 = 113.15 : x
2. Step 2: Convert to fraction form
   196.02/270.55 = 113.15/x
3. Step 3: Cross multiply
   196.02x = 270.55 × 113.15
4. Step 4: Simplify right side
   196.02x = 30,613.55
5. Step 5: Solve for x
   x = 30,613.55/196.02
6. Step 6: Final answer
   x = 156.18