Finding the Fourth Proportional to 16,457.02, 24,672.78 and 8,131.30

Step by Step Solution

1. Step 1: Write the proportion equation
   16,457.02 : 24,672.78 = 8,131.30 : x
2. Step 2: Convert to fraction form
   16,457.02/24,672.78 = 8,131.30/x
3. Step 3: Cross multiply
   16,457.02x = 24,672.78 × 8,131.30
4. Step 4: Simplify right side
   16,457.02x = 200,621,776.01
5. Step 5: Solve for x
   x = 200,621,776.01/16,457.02
6. Step 6: Final answer
   x = 12,190.65