Finding the Fourth Proportional to 407,456.72, 611,183.48 and 229,882.96

Step by Step Solution

1. Step 1: Write the proportion equation
   407,456.72 : 611,183.48 = 229,882.96 : x
2. Step 2: Convert to fraction form
   407,456.72/611,183.48 = 229,882.96/x
3. Step 3: Cross multiply
   407,456.72x = 611,183.48 × 229,882.96
4. Step 4: Simplify right side
   407,456.72x = 140,500,667,485.50
5. Step 5: Solve for x
   x = 140,500,667,485.50/407,456.72
6. Step 6: Final answer
   x = 344,823.54