Finding the Fourth Proportional to 447,401.48, 617,401.86 and 246,197.48

Step by Step Solution

1. Step 1: Write the proportion equation
   447,401.48 : 617,401.86 = 246,197.48 : x
2. Step 2: Convert to fraction form
   447,401.48/617,401.86 = 246,197.48/x
3. Step 3: Cross multiply
   447,401.48x = 617,401.86 × 246,197.48
4. Step 4: Simplify right side
   447,401.48x = 152,002,782,079.31
5. Step 5: Solve for x
   x = 152,002,782,079.31/447,401.48
6. Step 6: Final answer
   x = 339,745.82