Finding the Fourth Proportional to 404,111.50, 557,663.20 and 222,820.41

Step by Step Solution

1. Step 1: Write the proportion equation
   404,111.50 : 557,663.20 = 222,820.41 : x
2. Step 2: Convert to fraction form
   404,111.50/557,663.20 = 222,820.41/x
3. Step 3: Cross multiply
   404,111.50x = 557,663.20 × 222,820.41
4. Step 4: Simplify right side
   404,111.50x = 124,258,742,865.91
5. Step 5: Solve for x
   x = 124,258,742,865.91/404,111.50
6. Step 6: Final answer
   x = 307,486.28