Finding the Fourth Proportional to 404,659.84, 558,430.69 and 223,371.89

Step by Step Solution

1. Step 1: Write the proportion equation
   404,659.84 : 558,430.69 = 223,371.89 : x
2. Step 2: Convert to fraction form
   404,659.84/558,430.69 = 223,371.89/x
3. Step 3: Cross multiply
   404,659.84x = 558,430.69 × 223,371.89
4. Step 4: Simplify right side
   404,659.84x = 124,737,718,659.30
5. Step 5: Solve for x
   x = 124,737,718,659.30/404,659.84
6. Step 6: Final answer
   x = 308,253.27