Finding the Fourth Proportional to 16,908.48, 25,357.59 and 5,808.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,908.48 : 25,357.59 = 5,808.78 : x
2. Step 2: Convert to fraction form
   16,908.48/25,357.59 = 5,808.78/x
3. Step 3: Cross multiply
   16,908.48x = 25,357.59 × 5,808.78
4. Step 4: Simplify right side
   16,908.48x = 147,296,661.64
5. Step 5: Solve for x
   x = 147,296,661.64/16,908.48
6. Step 6: Final answer
   x = 8,711.41