Finding the Fourth Proportional to 196.72, 271.60 and 123.14

Step by Step Solution

1. Step 1: Write the proportion equation
   196.72 : 271.60 = 123.14 : x
2. Step 2: Convert to fraction form
   196.72/271.60 = 123.14/x
3. Step 3: Cross multiply
   196.72x = 271.60 × 123.14
4. Step 4: Simplify right side
   196.72x = 33,444.82
5. Step 5: Solve for x
   x = 33,444.82/196.72
6. Step 6: Final answer
   x = 170.01