Finding the Fourth Proportional to 16,806.47, 25,204.30 and 5,559.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,806.47 : 25,204.30 = 5,559.31 : x
2. Step 2: Convert to fraction form
   16,806.47/25,204.30 = 5,559.31/x
3. Step 3: Cross multiply
   16,806.47x = 25,204.30 × 5,559.31
4. Step 4: Simplify right side
   16,806.47x = 140,118,517.03
5. Step 5: Solve for x
   x = 140,118,517.03/16,806.47
6. Step 6: Final answer
   x = 8,337.18