Finding the Fourth Proportional to 16,189.78, 22,342.59 and 9,019.69

Step by Step Solution

1. Step 1: Write the proportion equation
   16,189.78 : 22,342.59 = 9,019.69 : x
2. Step 2: Convert to fraction form
   16,189.78/22,342.59 = 9,019.69/x
3. Step 3: Cross multiply
   16,189.78x = 22,342.59 × 9,019.69
4. Step 4: Simplify right side
   16,189.78x = 201,523,190.50
5. Step 5: Solve for x
   x = 201,523,190.50/16,189.78
6. Step 6: Final answer
   x = 12,447.56