Finding the Fourth Proportional to 16,806.18, 25,211.55 and 5,709.89

Step by Step Solution

1. Step 1: Write the proportion equation
   16,806.18 : 25,211.55 = 5,709.89 : x
2. Step 2: Convert to fraction form
   16,806.18/25,211.55 = 5,709.89/x
3. Step 3: Cross multiply
   16,806.18x = 25,211.55 × 5,709.89
4. Step 4: Simplify right side
   16,806.18x = 143,955,261.67
5. Step 5: Solve for x
   x = 143,955,261.67/16,806.18
6. Step 6: Final answer
   x = 8,565.61