Finding the Fourth Proportional to 16,397.59, 22,629.63 and 12,412.39

Step by Step Solution

1. Step 1: Write the proportion equation
   16,397.59 : 22,629.63 = 12,412.39 : x
2. Step 2: Convert to fraction form
   16,397.59/22,629.63 = 12,412.39/x
3. Step 3: Cross multiply
   16,397.59x = 22,629.63 × 12,412.39
4. Step 4: Simplify right side
   16,397.59x = 280,887,793.12
5. Step 5: Solve for x
   x = 280,887,793.12/16,397.59
6. Step 6: Final answer
   x = 17,129.82