Finding the Fourth Proportional to 446,922.72, 616,764.24 and 245,718.72

Step by Step Solution

1. Step 1: Write the proportion equation
   446,922.72 : 616,764.24 = 245,718.72 : x
2. Step 2: Convert to fraction form
   446,922.72/616,764.24 = 245,718.72/x
3. Step 3: Cross multiply
   446,922.72x = 616,764.24 × 245,718.72
4. Step 4: Simplify right side
   446,922.72x = 151,550,519,594.57
5. Step 5: Solve for x
   x = 151,550,519,594.57/446,922.72
6. Step 6: Final answer
   x = 339,097.82