Finding the Fourth Proportional to 443,050.80, 664,923.42 and 309,059.52

Step by Step Solution

1. Step 1: Write the proportion equation
   443,050.80 : 664,923.42 = 309,059.52 : x
2. Step 2: Convert to fraction form
   443,050.80/664,923.42 = 309,059.52/x
3. Step 3: Cross multiply
   443,050.80x = 664,923.42 × 309,059.52
4. Step 4: Simplify right side
   443,050.80x = 205,500,913,021.96
5. Step 5: Solve for x
   x = 205,500,913,021.96/443,050.80
6. Step 6: Final answer
   x = 463,831.49