Finding the Fourth Proportional to 196.72, 271.50 and 113.84

Step by Step Solution

1. Step 1: Write the proportion equation
   196.72 : 271.50 = 113.84 : x
2. Step 2: Convert to fraction form
   196.72/271.50 = 113.84/x
3. Step 3: Cross multiply
   196.72x = 271.50 × 113.84
4. Step 4: Simplify right side
   196.72x = 30,907.56
5. Step 5: Solve for x
   x = 30,907.56/196.72
6. Step 6: Final answer
   x = 157.11