Finding the Fourth Proportional to 404,271.54, 557,897.36 and 222,988.37

Step by Step Solution

1. Step 1: Write the proportion equation
   404,271.54 : 557,897.36 = 222,988.37 : x
2. Step 2: Convert to fraction form
   404,271.54/557,897.36 = 222,988.37/x
3. Step 3: Cross multiply
   404,271.54x = 557,897.36 × 222,988.37
4. Step 4: Simplify right side
   404,271.54x = 124,404,619,029.28
5. Step 5: Solve for x
   x = 124,404,619,029.28/404,271.54
6. Step 6: Final answer
   x = 307,725.39