Finding the Fourth Proportional to 17,053.16, 25,584.78 and 8,739

Step by Step Solution

1. Step 1: Write the proportion equation
   17,053.16 : 25,584.78 = 8,739 : x
2. Step 2: Convert to fraction form
   17,053.16/25,584.78 = 8,739/x
3. Step 3: Cross multiply
   17,053.16x = 25,584.78 × 8,739
4. Step 4: Simplify right side
   17,053.16x = 223,585,392.42
5. Step 5: Solve for x
   x = 223,585,392.42/17,053.16
6. Step 6: Final answer
   x = 13,111.09