Finding the Fourth Proportional to 13,073.28, 18,028.71 and 8,600.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,073.28 : 18,028.71 = 8,600.82 : x
2. Step 2: Convert to fraction form
   13,073.28/18,028.71 = 8,600.82/x
3. Step 3: Cross multiply
   13,073.28x = 18,028.71 × 8,600.82
4. Step 4: Simplify right side
   13,073.28x = 155,061,689.54
5. Step 5: Solve for x
   x = 155,061,689.54/13,073.28
6. Step 6: Final answer
   x = 11,860.96