Finding the Fourth Proportional to 196.88, 271.83 and 123.23

Step by Step Solution

1. Step 1: Write the proportion equation
   196.88 : 271.83 = 123.23 : x
2. Step 2: Convert to fraction form
   196.88/271.83 = 123.23/x
3. Step 3: Cross multiply
   196.88x = 271.83 × 123.23
4. Step 4: Simplify right side
   196.88x = 33,497.61
5. Step 5: Solve for x
   x = 33,497.61/196.88
6. Step 6: Final answer
   x = 170.14