Finding the Fourth Proportional to 446,667.75, 616,401.50 and 245,463.75

Step by Step Solution

1. Step 1: Write the proportion equation
   446,667.75 : 616,401.50 = 245,463.75 : x
2. Step 2: Convert to fraction form
   446,667.75/616,401.50 = 245,463.75/x
3. Step 3: Cross multiply
   446,667.75x = 616,401.50 × 245,463.75
4. Step 4: Simplify right side
   446,667.75x = 151,304,222,468.31
5. Step 5: Solve for x
   x = 151,304,222,468.31/446,667.75
6. Step 6: Final answer
   x = 338,739.98