Finding the Fourth Proportional to 196.10, 270.59 and 113.19

Step by Step Solution

1. Step 1: Write the proportion equation
   196.10 : 270.59 = 113.19 : x
2. Step 2: Convert to fraction form
   196.10/270.59 = 113.19/x
3. Step 3: Cross multiply
   196.10x = 270.59 × 113.19
4. Step 4: Simplify right side
   196.10x = 30,627.52
5. Step 5: Solve for x
   x = 30,627.52/196.10
6. Step 6: Final answer
   x = 156.19