Finding the Fourth Proportional to 196.50, 294.71 and 80.83

Step by Step Solution

1. Step 1: Write the proportion equation
   196.50 : 294.71 = 80.83 : x
2. Step 2: Convert to fraction form
   196.50/294.71 = 80.83/x
3. Step 3: Cross multiply
   196.50x = 294.71 × 80.83
4. Step 4: Simplify right side
   196.50x = 23,821.37
5. Step 5: Solve for x
   x = 23,821.37/196.50
6. Step 6: Final answer
   x = 121.23