Finding the Fourth Proportional to 196.52, 271.16 and 113.61

Step by Step Solution

1. Step 1: Write the proportion equation
   196.52 : 271.16 = 113.61 : x
2. Step 2: Convert to fraction form
   196.52/271.16 = 113.61/x
3. Step 3: Cross multiply
   196.52x = 271.16 × 113.61
4. Step 4: Simplify right side
   196.52x = 30,805.92
5. Step 5: Solve for x
   x = 30,805.92/196.52
6. Step 6: Final answer
   x = 156.76