Finding the Fourth Proportional to 443,406.48, 611,719.83 and 327,397.98

Step by Step Solution

1. Step 1: Write the proportion equation
   443,406.48 : 611,719.83 = 327,397.98 : x
2. Step 2: Convert to fraction form
   443,406.48/611,719.83 = 327,397.98/x
3. Step 3: Cross multiply
   443,406.48x = 611,719.83 × 327,397.98
4. Step 4: Simplify right side
   443,406.48x = 200,275,836,667.94
5. Step 5: Solve for x
   x = 200,275,836,667.94/443,406.48
6. Step 6: Final answer
   x = 451,675.48