Finding the Fourth Proportional to 16,209.89, 22,368.78 and 9,040.54

Step by Step Solution

1. Step 1: Write the proportion equation
   16,209.89 : 22,368.78 = 9,040.54 : x
2. Step 2: Convert to fraction form
   16,209.89/22,368.78 = 9,040.54/x
3. Step 3: Cross multiply
   16,209.89x = 22,368.78 × 9,040.54
4. Step 4: Simplify right side
   16,209.89x = 202,225,850.34
5. Step 5: Solve for x
   x = 202,225,850.34/16,209.89
6. Step 6: Final answer
   x = 12,475.46