Finding the Fourth Proportional to 17,142.88, 25,710.72 and 4,828

Step by Step Solution

1. Step 1: Write the proportion equation
   17,142.88 : 25,710.72 = 4,828 : x
2. Step 2: Convert to fraction form
   17,142.88/25,710.72 = 4,828/x
3. Step 3: Cross multiply
   17,142.88x = 25,710.72 × 4,828
4. Step 4: Simplify right side
   17,142.88x = 124,131,356.16
5. Step 5: Solve for x
   x = 124,131,356.16/17,142.88
6. Step 6: Final answer
   x = 7,240.99