Finding the Fourth Proportional to 404,020.76, 557,552.52 and 222,739.34

Step by Step Solution

1. Step 1: Write the proportion equation
   404,020.76 : 557,552.52 = 222,739.34 : x
2. Step 2: Convert to fraction form
   404,020.76/557,552.52 = 222,739.34/x
3. Step 3: Cross multiply
   404,020.76x = 557,552.52 × 222,739.34
4. Step 4: Simplify right side
   404,020.76x = 124,188,877,532.37
5. Step 5: Solve for x
   x = 124,188,877,532.37/404,020.76
6. Step 6: Final answer
   x = 307,382.42