Finding the Fourth Proportional to 404,338.43, 557,632.54 and 323,736.55

Step by Step Solution

1. Step 1: Write the proportion equation
   404,338.43 : 557,632.54 = 323,736.55 : x
2. Step 2: Convert to fraction form
   404,338.43/557,632.54 = 323,736.55/x
3. Step 3: Cross multiply
   404,338.43x = 557,632.54 × 323,736.55
4. Step 4: Simplify right side
   404,338.43x = 180,526,034,667.34
5. Step 5: Solve for x
   x = 180,526,034,667.34/404,338.43
6. Step 6: Final answer
   x = 446,472.61