Finding the Fourth Proportional to 196.49, 294.78 and 105.27

Step by Step Solution

1. Step 1: Write the proportion equation
   196.49 : 294.78 = 105.27 : x
2. Step 2: Convert to fraction form
   196.49/294.78 = 105.27/x
3. Step 3: Cross multiply
   196.49x = 294.78 × 105.27
4. Step 4: Simplify right side
   196.49x = 31,031.49
5. Step 5: Solve for x
   x = 31,031.49/196.49
6. Step 6: Final answer
   x = 157.93