Finding the Fourth Proportional to 16,862.96, 25,288.49 and 5,615.24

Step by Step Solution

1. Step 1: Write the proportion equation
   16,862.96 : 25,288.49 = 5,615.24 : x
2. Step 2: Convert to fraction form
   16,862.96/25,288.49 = 5,615.24/x
3. Step 3: Cross multiply
   16,862.96x = 25,288.49 × 5,615.24
4. Step 4: Simplify right side
   16,862.96x = 142,001,017.85
5. Step 5: Solve for x
   x = 142,001,017.85/16,862.96
6. Step 6: Final answer
   x = 8,420.89