Finding the Fourth Proportional to 196.42, 271.06 and 109.10

Step by Step Solution

1. Step 1: Write the proportion equation
   196.42 : 271.06 = 109.10 : x
2. Step 2: Convert to fraction form
   196.42/271.06 = 109.10/x
3. Step 3: Cross multiply
   196.42x = 271.06 × 109.10
4. Step 4: Simplify right side
   196.42x = 29,571.56
5. Step 5: Solve for x
   x = 29,571.56/196.42
6. Step 6: Final answer
   x = 150.55