Finding the Fourth Proportional to 16,389.71, 24,578.55 and 5,856.89

Step by Step Solution

1. Step 1: Write the proportion equation
   16,389.71 : 24,578.55 = 5,856.89 : x
2. Step 2: Convert to fraction form
   16,389.71/24,578.55 = 5,856.89/x
3. Step 3: Cross multiply
   16,389.71x = 24,578.55 × 5,856.89
4. Step 4: Simplify right side
   16,389.71x = 143,953,816.93
5. Step 5: Solve for x
   x = 143,953,816.93/16,389.71
6. Step 6: Final answer
   x = 8,783.18