Finding the Fourth Proportional to 196.56, 271.27 and 113.67

Step by Step Solution

1. Step 1: Write the proportion equation
   196.56 : 271.27 = 113.67 : x
2. Step 2: Convert to fraction form
   196.56/271.27 = 113.67/x
3. Step 3: Cross multiply
   196.56x = 271.27 × 113.67
4. Step 4: Simplify right side
   196.56x = 30,834.76
5. Step 5: Solve for x
   x = 30,834.76/196.56
6. Step 6: Final answer
   x = 156.87