Finding the Fourth Proportional to 300,771.24, 415,036.71 and 173,422.23

Step by Step Solution

1. Step 1: Write the proportion equation
   300,771.24 : 415,036.71 = 173,422.23 : x
2. Step 2: Convert to fraction form
   300,771.24/415,036.71 = 173,422.23/x
3. Step 3: Cross multiply
   300,771.24x = 415,036.71 × 173,422.23
4. Step 4: Simplify right side
   300,771.24x = 71,976,591,780.06
5. Step 5: Solve for x
   x = 71,976,591,780.06/300,771.24
6. Step 6: Final answer
   x = 239,306.76