Finding the Fourth Proportional to 269,436.78, 404,105.76 and 100,940.58

Step by Step Solution

1. Step 1: Write the proportion equation
   269,436.78 : 404,105.76 = 100,940.58 : x
2. Step 2: Convert to fraction form
   269,436.78/404,105.76 = 100,940.58/x
3. Step 3: Cross multiply
   269,436.78x = 404,105.76 × 100,940.58
4. Step 4: Simplify right side
   269,436.78x = 40,790,669,795.74
5. Step 5: Solve for x
   x = 40,790,669,795.74/269,436.78
6. Step 6: Final answer
   x = 151,392.36