Finding the Fourth Proportional to 404,075.10, 557,627.52 and 222,794.10

Step by Step Solution

1. Step 1: Write the proportion equation
   404,075.10 : 557,627.52 = 222,794.10 : x
2. Step 2: Convert to fraction form
   404,075.10/557,627.52 = 222,794.10/x
3. Step 3: Cross multiply
   404,075.10x = 557,627.52 × 222,794.10
4. Step 4: Simplify right side
   404,075.10x = 124,236,121,453.63
5. Step 5: Solve for x
   x = 124,236,121,453.63/404,075.10
6. Step 6: Final answer
   x = 307,458.00