Finding the Fourth Proportional to 196.69, 271.57 and 123.04

Step by Step Solution

1. Step 1: Write the proportion equation
   196.69 : 271.57 = 123.04 : x
2. Step 2: Convert to fraction form
   196.69/271.57 = 123.04/x
3. Step 3: Cross multiply
   196.69x = 271.57 × 123.04
4. Step 4: Simplify right side
   196.69x = 33,414.96
5. Step 5: Solve for x
   x = 33,414.96/196.69
6. Step 6: Final answer
   x = 169.88