Finding the Fourth Proportional to 196.82, 271.56 and 113.88

Step by Step Solution

1. Step 1: Write the proportion equation
   196.82 : 271.56 = 113.88 : x
2. Step 2: Convert to fraction form
   196.82/271.56 = 113.88/x
3. Step 3: Cross multiply
   196.82x = 271.56 × 113.88
4. Step 4: Simplify right side
   196.82x = 30,924.88
5. Step 5: Solve for x
   x = 30,924.88/196.82
6. Step 6: Final answer
   x = 157.12