Finding the Fourth Proportional to 16,003.58, 22,081.16 and 9,288.05

Step by Step Solution

1. Step 1: Write the proportion equation
   16,003.58 : 22,081.16 = 9,288.05 : x
2. Step 2: Convert to fraction form
   16,003.58/22,081.16 = 9,288.05/x
3. Step 3: Cross multiply
   16,003.58x = 22,081.16 × 9,288.05
4. Step 4: Simplify right side
   16,003.58x = 205,090,996.56
5. Step 5: Solve for x
   x = 205,090,996.56/16,003.58
6. Step 6: Final answer
   x = 12,815.32