Finding the Fourth Proportional to 269,966.88, 404,956.80 and 82,980

Step by Step Solution

1. Step 1: Write the proportion equation
   269,966.88 : 404,956.80 = 82,980 : x
2. Step 2: Convert to fraction form
   269,966.88/404,956.80 = 82,980/x
3. Step 3: Cross multiply
   269,966.88x = 404,956.80 × 82,980
4. Step 4: Simplify right side
   269,966.88x = 33,603,315,264
5. Step 5: Solve for x
   x = 33,603,315,264/269,966.88
6. Step 6: Final answer
   x = 124,471.99