Finding the Fourth Proportional to 470,241.69, 649,202.52 and 309,563.82

Step by Step Solution

1. Step 1: Write the proportion equation
   470,241.69 : 649,202.52 = 309,563.82 : x
2. Step 2: Convert to fraction form
   470,241.69/649,202.52 = 309,563.82/x
3. Step 3: Cross multiply
   470,241.69x = 649,202.52 × 309,563.82
4. Step 4: Simplify right side
   470,241.69x = 200,969,613,205.69
5. Step 5: Solve for x
   x = 200,969,613,205.69/470,241.69
6. Step 6: Final answer
   x = 427,375.15