Finding the Fourth Proportional to 16,483.40, 22,743.68 and 9,412.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,483.40 : 22,743.68 = 9,412.12 : x
2. Step 2: Convert to fraction form
   16,483.40/22,743.68 = 9,412.12/x
3. Step 3: Cross multiply
   16,483.40x = 22,743.68 × 9,412.12
4. Step 4: Simplify right side
   16,483.40x = 214,066,245.40
5. Step 5: Solve for x
   x = 214,066,245.40/16,483.40
6. Step 6: Final answer
   x = 12,986.78