Finding the Fourth Proportional to 13,028.82, 17,982.18 and 7,439.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,028.82 : 17,982.18 = 7,439.82 : x
2. Step 2: Convert to fraction form
   13,028.82/17,982.18 = 7,439.82/x
3. Step 3: Cross multiply
   13,028.82x = 17,982.18 × 7,439.82
4. Step 4: Simplify right side
   13,028.82x = 133,784,182.41
5. Step 5: Solve for x
   x = 133,784,182.41/13,028.82
6. Step 6: Final answer
   x = 10,268.33