Finding the Fourth Proportional to 16,269.20, 22,437.86 and 12,906.69

Step by Step Solution

1. Step 1: Write the proportion equation
   16,269.20 : 22,437.86 = 12,906.69 : x
2. Step 2: Convert to fraction form
   16,269.20/22,437.86 = 12,906.69/x
3. Step 3: Cross multiply
   16,269.20x = 22,437.86 × 12,906.69
4. Step 4: Simplify right side
   16,269.20x = 289,598,553.42
5. Step 5: Solve for x
   x = 289,598,553.42/16,269.20
6. Step 6: Final answer
   x = 17,800.41