Finding the Fourth Proportional to 16,863.08, 25,289.16 and 5,615.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,863.08 : 25,289.16 = 5,615.42 : x
2. Step 2: Convert to fraction form
   16,863.08/25,289.16 = 5,615.42/x
3. Step 3: Cross multiply
   16,863.08x = 25,289.16 × 5,615.42
4. Step 4: Simplify right side
   16,863.08x = 142,009,254.85
5. Step 5: Solve for x
   x = 142,009,254.85/16,863.08
6. Step 6: Final answer
   x = 8,421.31