Finding the Fourth Proportional to 449,123.72, 673,121.42 and 224,546.68

Step by Step Solution

1. Step 1: Write the proportion equation
   449,123.72 : 673,121.42 = 224,546.68 : x
2. Step 2: Convert to fraction form
   449,123.72/673,121.42 = 224,546.68/x
3. Step 3: Cross multiply
   449,123.72x = 673,121.42 × 224,546.68
4. Step 4: Simplify right side
   449,123.72x = 151,147,180,097.89
5. Step 5: Solve for x
   x = 151,147,180,097.89/449,123.72
6. Step 6: Final answer
   x = 336,537.96