Finding the Fourth Proportional to 404,136.78, 557,696.83 and 222,848.67

Step by Step Solution

1. Step 1: Write the proportion equation
   404,136.78 : 557,696.83 = 222,848.67 : x
2. Step 2: Convert to fraction form
   404,136.78/557,696.83 = 222,848.67/x
3. Step 3: Cross multiply
   404,136.78x = 557,696.83 × 222,848.67
4. Step 4: Simplify right side
   404,136.78x = 124,281,993,483.11
5. Step 5: Solve for x
   x = 124,281,993,483.11/404,136.78
6. Step 6: Final answer
   x = 307,524.58