Finding the Fourth Proportional to 196.89, 271.69 and 108.37

Step by Step Solution

1. Step 1: Write the proportion equation
   196.89 : 271.69 = 108.37 : x
2. Step 2: Convert to fraction form
   196.89/271.69 = 108.37/x
3. Step 3: Cross multiply
   196.89x = 271.69 × 108.37
4. Step 4: Simplify right side
   196.89x = 29,442.10
5. Step 5: Solve for x
   x = 29,442.10/196.89
6. Step 6: Final answer
   x = 149.54