Finding the Fourth Proportional to 404,103.99, 605,238.45 and 313,418.73

Step by Step Solution

1. Step 1: Write the proportion equation
   404,103.99 : 605,238.45 = 313,418.73 : x
2. Step 2: Convert to fraction form
   404,103.99/605,238.45 = 313,418.73/x
3. Step 3: Cross multiply
   404,103.99x = 605,238.45 × 313,418.73
4. Step 4: Simplify right side
   404,103.99x = 189,693,066,346.17
5. Step 5: Solve for x
   x = 189,693,066,346.17/404,103.99
6. Step 6: Final answer
   x = 469,416.46