Finding the Fourth Proportional to 16,151.82, 22,290.92 and 9,078.29

Step by Step Solution

1. Step 1: Write the proportion equation
   16,151.82 : 22,290.92 = 9,078.29 : x
2. Step 2: Convert to fraction form
   16,151.82/22,290.92 = 9,078.29/x
3. Step 3: Cross multiply
   16,151.82x = 22,290.92 × 9,078.29
4. Step 4: Simplify right side
   16,151.82x = 202,363,279.28
5. Step 5: Solve for x
   x = 202,363,279.28/16,151.82
6. Step 6: Final answer
   x = 12,528.82