Finding the Fourth Proportional to 16,748.24, 25,122.89 and 8,423.71

Step by Step Solution

1. Step 1: Write the proportion equation
   16,748.24 : 25,122.89 = 8,423.71 : x
2. Step 2: Convert to fraction form
   16,748.24/25,122.89 = 8,423.71/x
3. Step 3: Cross multiply
   16,748.24x = 25,122.89 × 8,423.71
4. Step 4: Simplify right side
   16,748.24x = 211,627,939.72
5. Step 5: Solve for x
   x = 211,627,939.72/16,748.24
6. Step 6: Final answer
   x = 12,635.83