Finding the Fourth Proportional to 404,731, 558,009.57 and 331,865.43

Step by Step Solution

1. Step 1: Write the proportion equation
   404,731 : 558,009.57 = 331,865.43 : x
2. Step 2: Convert to fraction form
   404,731/558,009.57 = 331,865.43/x
3. Step 3: Cross multiply
   404,731x = 558,009.57 × 331,865.43
4. Step 4: Simplify right side
   404,731x = 185,184,085,892.17
5. Step 5: Solve for x
   x = 185,184,085,892.17/404,731
6. Step 6: Final answer
   x = 457,548.56