Finding the Fourth Proportional to 18,513.72, 25,544.82 and 10,960.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,513.72 : 25,544.82 = 10,960.50 : x
2. Step 2: Convert to fraction form
   18,513.72/25,544.82 = 10,960.50/x
3. Step 3: Cross multiply
   18,513.72x = 25,544.82 × 10,960.50
4. Step 4: Simplify right side
   18,513.72x = 279,983,999.61
5. Step 5: Solve for x
   x = 279,983,999.61/18,513.72
6. Step 6: Final answer
   x = 15,123.05