Finding the Fourth Proportional to 108,839.50, 163,288.78 and 45,626.38

Step by Step Solution

1. Step 1: Write the proportion equation
   108,839.50 : 163,288.78 = 45,626.38 : x
2. Step 2: Convert to fraction form
   108,839.50/163,288.78 = 45,626.38/x
3. Step 3: Cross multiply
   108,839.50x = 163,288.78 × 45,626.38
4. Step 4: Simplify right side
   108,839.50x = 7,450,275,403.73
5. Step 5: Solve for x
   x = 7,450,275,403.73/108,839.50
6. Step 6: Final answer
   x = 68,451.95