Finding the Fourth Proportional to 269,436.92, 404,077.30 and 91,939.96

Step by Step Solution

1. Step 1: Write the proportion equation
   269,436.92 : 404,077.30 = 91,939.96 : x
2. Step 2: Convert to fraction form
   269,436.92/404,077.30 = 91,939.96/x
3. Step 3: Cross multiply
   269,436.92x = 404,077.30 × 91,939.96
4. Step 4: Simplify right side
   269,436.92x = 37,150,850,798.91
5. Step 5: Solve for x
   x = 37,150,850,798.91/269,436.92
6. Step 6: Final answer
   x = 137,883.30