Finding the Fourth Proportional to 16,091.69, 22,205.61 and 9,018.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,091.69 : 22,205.61 = 9,018.56 : x
2. Step 2: Convert to fraction form
   16,091.69/22,205.61 = 9,018.56/x
3. Step 3: Cross multiply
   16,091.69x = 22,205.61 × 9,018.56
4. Step 4: Simplify right side
   16,091.69x = 200,262,681.64
5. Step 5: Solve for x
   x = 200,262,681.64/16,091.69
6. Step 6: Final answer
   x = 12,445.10