Finding the Fourth Proportional to 404,373.53, 605,362.21 and 299,662.49

Step by Step Solution

1. Step 1: Write the proportion equation
   404,373.53 : 605,362.21 = 299,662.49 : x
2. Step 2: Convert to fraction form
   404,373.53/605,362.21 = 299,662.49/x
3. Step 3: Cross multiply
   404,373.53x = 605,362.21 × 299,662.49
4. Step 4: Simplify right side
   404,373.53x = 181,404,343,424.54
5. Step 5: Solve for x
   x = 181,404,343,424.54/404,373.53
6. Step 6: Final answer
   x = 448,605.89