Finding the Fourth Proportional to 196.83, 271.59 and 109.49

Step by Step Solution

1. Step 1: Write the proportion equation
   196.83 : 271.59 = 109.49 : x
2. Step 2: Convert to fraction form
   196.83/271.59 = 109.49/x
3. Step 3: Cross multiply
   196.83x = 271.59 × 109.49
4. Step 4: Simplify right side
   196.83x = 29,734.62
5. Step 5: Solve for x
   x = 29,734.62/196.83
6. Step 6: Final answer
   x = 151.07