Finding the Fourth Proportional to 13,773.98, 20,660.49 and 5,982.80

Step by Step Solution

1. Step 1: Write the proportion equation
   13,773.98 : 20,660.49 = 5,982.80 : x
2. Step 2: Convert to fraction form
   13,773.98/20,660.49 = 5,982.80/x
3. Step 3: Cross multiply
   13,773.98x = 20,660.49 × 5,982.80
4. Step 4: Simplify right side
   13,773.98x = 123,607,476.27
5. Step 5: Solve for x
   x = 123,607,476.27/13,773.98
6. Step 6: Final answer
   x = 8,973.98