Finding the Fourth Proportional to 196.39, 294.42 and 109.72

Step by Step Solution

1. Step 1: Write the proportion equation
   196.39 : 294.42 = 109.72 : x
2. Step 2: Convert to fraction form
   196.39/294.42 = 109.72/x
3. Step 3: Cross multiply
   196.39x = 294.42 × 109.72
4. Step 4: Simplify right side
   196.39x = 32,303.76
5. Step 5: Solve for x
   x = 32,303.76/196.39
6. Step 6: Final answer
   x = 164.49