Finding the Fourth Proportional to 18,520.50, 25,553.24 and 10,559.82

Step by Step Solution

1. Step 1: Write the proportion equation
   18,520.50 : 25,553.24 = 10,559.82 : x
2. Step 2: Convert to fraction form
   18,520.50/25,553.24 = 10,559.82/x
3. Step 3: Cross multiply
   18,520.50x = 25,553.24 × 10,559.82
4. Step 4: Simplify right side
   18,520.50x = 269,837,614.82
5. Step 5: Solve for x
   x = 269,837,614.82/18,520.50
6. Step 6: Final answer
   x = 14,569.67