Finding the Fourth Proportional to 404,071.96, 557,858.52 and 359,236.12

Step by Step Solution

1. Step 1: Write the proportion equation
   404,071.96 : 557,858.52 = 359,236.12 : x
2. Step 2: Convert to fraction form
   404,071.96/557,858.52 = 359,236.12/x
3. Step 3: Cross multiply
   404,071.96x = 557,858.52 × 359,236.12
4. Step 4: Simplify right side
   404,071.96x = 200,402,930,233.74
5. Step 5: Solve for x
   x = 200,402,930,233.74/404,071.96
6. Step 6: Final answer
   x = 495,958.52