Finding the Fourth Proportional to 196.47, 294.73 and 105.17

Step by Step Solution

1. Step 1: Write the proportion equation
   196.47 : 294.73 = 105.17 : x
2. Step 2: Convert to fraction form
   196.47/294.73 = 105.17/x
3. Step 3: Cross multiply
   196.47x = 294.73 × 105.17
4. Step 4: Simplify right side
   196.47x = 30,995.02
5. Step 5: Solve for x
   x = 30,995.02/196.47
6. Step 6: Final answer
   x = 157.76