Finding the Fourth Proportional to 196.59, 271.27 and 113.69

Step by Step Solution

1. Step 1: Write the proportion equation
   196.59 : 271.27 = 113.69 : x
2. Step 2: Convert to fraction form
   196.59/271.27 = 113.69/x
3. Step 3: Cross multiply
   196.59x = 271.27 × 113.69
4. Step 4: Simplify right side
   196.59x = 30,839.34
5. Step 5: Solve for x
   x = 30,839.34/196.59
6. Step 6: Final answer
   x = 156.87