Finding the Fourth Proportional to 196.82, 271.61 and 109.49

Step by Step Solution

1. Step 1: Write the proportion equation
   196.82 : 271.61 = 109.49 : x
2. Step 2: Convert to fraction form
   196.82/271.61 = 109.49/x
3. Step 3: Cross multiply
   196.82x = 271.61 × 109.49
4. Step 4: Simplify right side
   196.82x = 29,736.67
5. Step 5: Solve for x
   x = 29,736.67/196.82
6. Step 6: Final answer
   x = 151.09