Finding the Fourth Proportional to 16,002.36, 22,087.62 and 9,290.09

Step by Step Solution

1. Step 1: Write the proportion equation
   16,002.36 : 22,087.62 = 9,290.09 : x
2. Step 2: Convert to fraction form
   16,002.36/22,087.62 = 9,290.09/x
3. Step 3: Cross multiply
   16,002.36x = 22,087.62 × 9,290.09
4. Step 4: Simplify right side
   16,002.36x = 205,196,032.90
5. Step 5: Solve for x
   x = 205,196,032.90/16,002.36
6. Step 6: Final answer
   x = 12,822.86