Finding the Fourth Proportional to 12,799.40, 19,167.03 and 8,105.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,799.40 : 19,167.03 = 8,105.24 : x
2. Step 2: Convert to fraction form
   12,799.40/19,167.03 = 8,105.24/x
3. Step 3: Cross multiply
   12,799.40x = 19,167.03 × 8,105.24
4. Step 4: Simplify right side
   12,799.40x = 155,353,426.15
5. Step 5: Solve for x
   x = 155,353,426.15/12,799.40
6. Step 6: Final answer
   x = 12,137.56