Finding the Fourth Proportional to 16,085.68, 22,198.21 and 9,012.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,085.68 : 22,198.21 = 9,012.10 : x
2. Step 2: Convert to fraction form
   16,085.68/22,198.21 = 9,012.10/x
3. Step 3: Cross multiply
   16,085.68x = 22,198.21 × 9,012.10
4. Step 4: Simplify right side
   16,085.68x = 200,052,488.34
5. Step 5: Solve for x
   x = 200,052,488.34/16,085.68
6. Step 6: Final answer
   x = 12,436.68