Finding the Fourth Proportional to 269,818.25, 404,656.86 and 80,227.57

Step by Step Solution

1. Step 1: Write the proportion equation
   269,818.25 : 404,656.86 = 80,227.57 : x
2. Step 2: Convert to fraction form
   269,818.25/404,656.86 = 80,227.57/x
3. Step 3: Cross multiply
   269,818.25x = 404,656.86 × 80,227.57
4. Step 4: Simplify right side
   269,818.25x = 32,464,636,561.63
5. Step 5: Solve for x
   x = 32,464,636,561.63/269,818.25
6. Step 6: Final answer
   x = 120,320.39