Finding the Fourth Proportional to 196.86, 294.94 and 105.46

Step by Step Solution

1. Step 1: Write the proportion equation
   196.86 : 294.94 = 105.46 : x
2. Step 2: Convert to fraction form
   196.86/294.94 = 105.46/x
3. Step 3: Cross multiply
   196.86x = 294.94 × 105.46
4. Step 4: Simplify right side
   196.86x = 31,104.37
5. Step 5: Solve for x
   x = 31,104.37/196.86
6. Step 6: Final answer
   x = 158.00