Finding the Fourth Proportional to 196.56, 271.49 and 152.82

Step by Step Solution

1. Step 1: Write the proportion equation
   196.56 : 271.49 = 152.82 : x
2. Step 2: Convert to fraction form
   196.56/271.49 = 152.82/x
3. Step 3: Cross multiply
   196.56x = 271.49 × 152.82
4. Step 4: Simplify right side
   196.56x = 41,488.34
5. Step 5: Solve for x
   x = 41,488.34/196.56
6. Step 6: Final answer
   x = 211.07