Finding the Fourth Proportional to 18,665.92, 25,759.50 and 10,709.56

Step by Step Solution

1. Step 1: Write the proportion equation
   18,665.92 : 25,759.50 = 10,709.56 : x
2. Step 2: Convert to fraction form
   18,665.92/25,759.50 = 10,709.56/x
3. Step 3: Cross multiply
   18,665.92x = 25,759.50 × 10,709.56
4. Step 4: Simplify right side
   18,665.92x = 275,872,910.82
5. Step 5: Solve for x
   x = 275,872,910.82/18,665.92
6. Step 6: Final answer
   x = 14,779.50