Finding the Fourth Proportional to 16,748.49, 25,123.27 and 8,423.96

Step by Step Solution

1. Step 1: Write the proportion equation
   16,748.49 : 25,123.27 = 8,423.96 : x
2. Step 2: Convert to fraction form
   16,748.49/25,123.27 = 8,423.96/x
3. Step 3: Cross multiply
   16,748.49x = 25,123.27 × 8,423.96
4. Step 4: Simplify right side
   16,748.49x = 211,637,421.55
5. Step 5: Solve for x
   x = 211,637,421.55/16,748.49
6. Step 6: Final answer
   x = 12,636.21