Finding the Fourth Proportional to 196.79, 271.61 and 130.37

Step by Step Solution

1. Step 1: Write the proportion equation
   196.79 : 271.61 = 130.37 : x
2. Step 2: Convert to fraction form
   196.79/271.61 = 130.37/x
3. Step 3: Cross multiply
   196.79x = 271.61 × 130.37
4. Step 4: Simplify right side
   196.79x = 35,409.80
5. Step 5: Solve for x
   x = 35,409.80/196.79
6. Step 6: Final answer
   x = 179.94