Finding the Fourth Proportional to 16,708, 23,057.60 and 9,256

Step by Step Solution

1. Step 1: Write the proportion equation
   16,708 : 23,057.60 = 9,256 : x
2. Step 2: Convert to fraction form
   16,708/23,057.60 = 9,256/x
3. Step 3: Cross multiply
   16,708x = 23,057.60 × 9,256
4. Step 4: Simplify right side
   16,708x = 213,421,145.60
5. Step 5: Solve for x
   x = 213,421,145.60/16,708
6. Step 6: Final answer
   x = 12,773.59