Finding the Fourth Proportional to 8,982.84, 13,480.41 and 3,139.46

Step by Step Solution

1. Step 1: Write the proportion equation
   8,982.84 : 13,480.41 = 3,139.46 : x
2. Step 2: Convert to fraction form
   8,982.84/13,480.41 = 3,139.46/x
3. Step 3: Cross multiply
   8,982.84x = 13,480.41 × 3,139.46
4. Step 4: Simplify right side
   8,982.84x = 42,321,140.58
5. Step 5: Solve for x
   x = 42,321,140.58/8,982.84
6. Step 6: Final answer
   x = 4,711.33