Finding the Fourth Proportional to 16,520.16, 22,798.56 and 9,448.80

Step by Step Solution

1. Step 1: Write the proportion equation
   16,520.16 : 22,798.56 = 9,448.80 : x
2. Step 2: Convert to fraction form
   16,520.16/22,798.56 = 9,448.80/x
3. Step 3: Cross multiply
   16,520.16x = 22,798.56 × 9,448.80
4. Step 4: Simplify right side
   16,520.16x = 215,419,033.73
5. Step 5: Solve for x
   x = 215,419,033.73/16,520.16
6. Step 6: Final answer
   x = 13,039.77