Finding the Fourth Proportional to 16,003.72, 22,081.84 and 9,196.43

Step by Step Solution

1. Step 1: Write the proportion equation
   16,003.72 : 22,081.84 = 9,196.43 : x
2. Step 2: Convert to fraction form
   16,003.72/22,081.84 = 9,196.43/x
3. Step 3: Cross multiply
   16,003.72x = 22,081.84 × 9,196.43
4. Step 4: Simplify right side
   16,003.72x = 203,074,138.37
5. Step 5: Solve for x
   x = 203,074,138.37/16,003.72
6. Step 6: Final answer
   x = 12,689.18