Finding the Fourth Proportional to 16,858.56, 25,244.72 and 16,359.69

Step by Step Solution

1. Step 1: Write the proportion equation
   16,858.56 : 25,244.72 = 16,359.69 : x
2. Step 2: Convert to fraction form
   16,858.56/25,244.72 = 16,359.69/x
3. Step 3: Cross multiply
   16,858.56x = 25,244.72 × 16,359.69
4. Step 4: Simplify right side
   16,858.56x = 412,995,856.45
5. Step 5: Solve for x
   x = 412,995,856.45/16,858.56
6. Step 6: Final answer
   x = 24,497.69