Finding the Fourth Proportional to 16,515.54, 22,789.89 and 13,379.22

Step by Step Solution

1. Step 1: Write the proportion equation
   16,515.54 : 22,789.89 = 13,379.22 : x
2. Step 2: Convert to fraction form
   16,515.54/22,789.89 = 13,379.22/x
3. Step 3: Cross multiply
   16,515.54x = 22,789.89 × 13,379.22
4. Step 4: Simplify right side
   16,515.54x = 304,910,952.09
5. Step 5: Solve for x
   x = 304,910,952.09/16,515.54
6. Step 6: Final answer
   x = 18,462.06