Finding the Fourth Proportional to 16,043.94, 22,139.82 and 9,328.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,043.94 : 22,139.82 = 9,328.50 : x
2. Step 2: Convert to fraction form
   16,043.94/22,139.82 = 9,328.50/x
3. Step 3: Cross multiply
   16,043.94x = 22,139.82 × 9,328.50
4. Step 4: Simplify right side
   16,043.94x = 206,531,310.87
5. Step 5: Solve for x
   x = 206,531,310.87/16,043.94
6. Step 6: Final answer
   x = 12,872.85