Finding the Fourth Proportional to 16,399.56, 24,578.58 and 10,474.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,399.56 : 24,578.58 = 10,474.16 : x
2. Step 2: Convert to fraction form
   16,399.56/24,578.58 = 10,474.16/x
3. Step 3: Cross multiply
   16,399.56x = 24,578.58 × 10,474.16
4. Step 4: Simplify right side
   16,399.56x = 257,439,975.22
5. Step 5: Solve for x
   x = 257,439,975.22/16,399.56
6. Step 6: Final answer
   x = 15,697.98