Finding the Fourth Proportional to 196.47, 294.71 and 105.27

Step by Step Solution

1. Step 1: Write the proportion equation
   196.47 : 294.71 = 105.27 : x
2. Step 2: Convert to fraction form
   196.47/294.71 = 105.27/x
3. Step 3: Cross multiply
   196.47x = 294.71 × 105.27
4. Step 4: Simplify right side
   196.47x = 31,023.60
5. Step 5: Solve for x
   x = 31,023.60/196.47
6. Step 6: Final answer
   x = 157.91