Finding the Fourth Proportional to 16,090.76, 22,205.21 and 9,017.18

Step by Step Solution

1. Step 1: Write the proportion equation
   16,090.76 : 22,205.21 = 9,017.18 : x
2. Step 2: Convert to fraction form
   16,090.76/22,205.21 = 9,017.18/x
3. Step 3: Cross multiply
   16,090.76x = 22,205.21 × 9,017.18
4. Step 4: Simplify right side
   16,090.76x = 200,228,302.67
5. Step 5: Solve for x
   x = 200,228,302.67/16,090.76
6. Step 6: Final answer
   x = 12,443.68