Finding the Fourth Proportional to 16,003.67, 22,081.28 and 9,285.39

Step by Step Solution

1. Step 1: Write the proportion equation
   16,003.67 : 22,081.28 = 9,285.39 : x
2. Step 2: Convert to fraction form
   16,003.67/22,081.28 = 9,285.39/x
3. Step 3: Cross multiply
   16,003.67x = 22,081.28 × 9,285.39
4. Step 4: Simplify right side
   16,003.67x = 205,033,250.07
5. Step 5: Solve for x
   x = 205,033,250.07/16,003.67
6. Step 6: Final answer
   x = 12,811.64