Finding the Fourth Proportional to 300,946.72, 415,290.48 and 173,614.72

Step by Step Solution

1. Step 1: Write the proportion equation
   300,946.72 : 415,290.48 = 173,614.72 : x
2. Step 2: Convert to fraction form
   300,946.72/415,290.48 = 173,614.72/x
3. Step 3: Cross multiply
   300,946.72x = 415,290.48 × 173,614.72
4. Step 4: Simplify right side
   300,946.72x = 72,100,540,403.87
5. Step 5: Solve for x
   x = 72,100,540,403.87/300,946.72
6. Step 6: Final answer
   x = 239,579.09