Finding the Fourth Proportional to 16,151.60, 22,290.14 and 9,078.48

Step by Step Solution

1. Step 1: Write the proportion equation
   16,151.60 : 22,290.14 = 9,078.48 : x
2. Step 2: Convert to fraction form
   16,151.60/22,290.14 = 9,078.48/x
3. Step 3: Cross multiply
   16,151.60x = 22,290.14 × 9,078.48
4. Step 4: Simplify right side
   16,151.60x = 202,360,561.82
5. Step 5: Solve for x
   x = 202,360,561.82/16,151.60
6. Step 6: Final answer
   x = 12,528.82