Finding the Fourth Proportional to 219.59, 327.69 and 196.53

Step by Step Solution

1. Step 1: Write the proportion equation
   219.59 : 327.69 = 196.53 : x
2. Step 2: Convert to fraction form
   219.59/327.69 = 196.53/x
3. Step 3: Cross multiply
   219.59x = 327.69 × 196.53
4. Step 4: Simplify right side
   219.59x = 64,399.69
5. Step 5: Solve for x
   x = 64,399.69/219.59
6. Step 6: Final answer
   x = 293.27