Finding the Fourth Proportional to 269,820.29, 404,659.96 and 80,229.61

Step by Step Solution

1. Step 1: Write the proportion equation
   269,820.29 : 404,659.96 = 80,229.61 : x
2. Step 2: Convert to fraction form
   269,820.29/404,659.96 = 80,229.61/x
3. Step 3: Cross multiply
   269,820.29x = 404,659.96 × 80,229.61
4. Step 4: Simplify right side
   269,820.29x = 32,465,710,773.42
5. Step 5: Solve for x
   x = 32,465,710,773.42/269,820.29
6. Step 6: Final answer
   x = 120,323.46