Finding the Fourth Proportional to 404,308.58, 606,462.88 and 226,940.18

Step by Step Solution

1. Step 1: Write the proportion equation
   404,308.58 : 606,462.88 = 226,940.18 : x
2. Step 2: Convert to fraction form
   404,308.58/606,462.88 = 226,940.18/x
3. Step 3: Cross multiply
   404,308.58x = 606,462.88 × 226,940.18
4. Step 4: Simplify right side
   404,308.58x = 137,630,795,150.52
5. Step 5: Solve for x
   x = 137,630,795,150.52/404,308.58
6. Step 6: Final answer
   x = 340,410.28