Finding the Fourth Proportional to 404,982.05, 558,860.72 and 223,684.61

Step by Step Solution

1. Step 1: Write the proportion equation
   404,982.05 : 558,860.72 = 223,684.61 : x
2. Step 2: Convert to fraction form
   404,982.05/558,860.72 = 223,684.61/x
3. Step 3: Cross multiply
   404,982.05x = 558,860.72 × 223,684.61
4. Step 4: Simplify right side
   404,982.05x = 125,008,538,284.79
5. Step 5: Solve for x
   x = 125,008,538,284.79/404,982.05
6. Step 6: Final answer
   x = 308,676.74