Finding the Fourth Proportional to 16,100.70, 24,139.05 and 8,315.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,100.70 : 24,139.05 = 8,315.10 : x
2. Step 2: Convert to fraction form
   16,100.70/24,139.05 = 8,315.10/x
3. Step 3: Cross multiply
   16,100.70x = 24,139.05 × 8,315.10
4. Step 4: Simplify right side
   16,100.70x = 200,718,614.66
5. Step 5: Solve for x
   x = 200,718,614.66/16,100.70
6. Step 6: Final answer
   x = 12,466.45