Finding the Fourth Proportional to 196.83, 295.31 and 105.59

Step by Step Solution

1. Step 1: Write the proportion equation
   196.83 : 295.31 = 105.59 : x
2. Step 2: Convert to fraction form
   196.83/295.31 = 105.59/x
3. Step 3: Cross multiply
   196.83x = 295.31 × 105.59
4. Step 4: Simplify right side
   196.83x = 31,182.79
5. Step 5: Solve for x
   x = 31,182.79/196.83
6. Step 6: Final answer
   x = 158.42