Finding the Fourth Proportional to 404,273.33, 557,892.77 and 222,992.90

Step by Step Solution

1. Step 1: Write the proportion equation
   404,273.33 : 557,892.77 = 222,992.90 : x
2. Step 2: Convert to fraction form
   404,273.33/557,892.77 = 222,992.90/x
3. Step 3: Cross multiply
   404,273.33x = 557,892.77 × 222,992.90
4. Step 4: Simplify right side
   404,273.33x = 124,406,124,859.00
5. Step 5: Solve for x
   x = 124,406,124,859.00/404,273.33
6. Step 6: Final answer
   x = 307,727.76