Finding the Fourth Proportional to 16,568.71, 22,862.05 and 10,978.63

Step by Step Solution

1. Step 1: Write the proportion equation
   16,568.71 : 22,862.05 = 10,978.63 : x
2. Step 2: Convert to fraction form
   16,568.71/22,862.05 = 10,978.63/x
3. Step 3: Cross multiply
   16,568.71x = 22,862.05 × 10,978.63
4. Step 4: Simplify right side
   16,568.71x = 250,993,987.99
5. Step 5: Solve for x
   x = 250,993,987.99/16,568.71
6. Step 6: Final answer
   x = 15,148.67