Finding the Fourth Proportional to 196.43, 294.69 and 105.05

Step by Step Solution

1. Step 1: Write the proportion equation
   196.43 : 294.69 = 105.05 : x
2. Step 2: Convert to fraction form
   196.43/294.69 = 105.05/x
3. Step 3: Cross multiply
   196.43x = 294.69 × 105.05
4. Step 4: Simplify right side
   196.43x = 30,958.32
5. Step 5: Solve for x
   x = 30,958.32/196.43
6. Step 6: Final answer
   x = 157.61