Finding the Fourth Proportional to 17,143.16, 25,716.90 and 5,456.48

Step by Step Solution

1. Step 1: Write the proportion equation
   17,143.16 : 25,716.90 = 5,456.48 : x
2. Step 2: Convert to fraction form
   17,143.16/25,716.90 = 5,456.48/x
3. Step 3: Cross multiply
   17,143.16x = 25,716.90 × 5,456.48
4. Step 4: Simplify right side
   17,143.16x = 140,323,750.51
5. Step 5: Solve for x
   x = 140,323,750.51/17,143.16
6. Step 6: Final answer
   x = 8,185.41