Finding the Fourth Proportional to 196.42, 293.89 and 122.31

Step by Step Solution

1. Step 1: Write the proportion equation
   196.42 : 293.89 = 122.31 : x
2. Step 2: Convert to fraction form
   196.42/293.89 = 122.31/x
3. Step 3: Cross multiply
   196.42x = 293.89 × 122.31
4. Step 4: Simplify right side
   196.42x = 35,945.69
5. Step 5: Solve for x
   x = 35,945.69/196.42
6. Step 6: Final answer
   x = 183.00