Finding the Fourth Proportional to 16,396.59, 22,628.25 and 12,411.39

Step by Step Solution

1. Step 1: Write the proportion equation
   16,396.59 : 22,628.25 = 12,411.39 : x
2. Step 2: Convert to fraction form
   16,396.59/22,628.25 = 12,411.39/x
3. Step 3: Cross multiply
   16,396.59x = 22,628.25 × 12,411.39
4. Step 4: Simplify right side
   16,396.59x = 280,848,035.77
5. Step 5: Solve for x
   x = 280,848,035.77/16,396.59
6. Step 6: Final answer
   x = 17,128.44