Finding the Fourth Proportional to 18,517.41, 25,553.98 and 10,019.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,517.41 : 25,553.98 = 10,019.50 : x
2. Step 2: Convert to fraction form
   18,517.41/25,553.98 = 10,019.50/x
3. Step 3: Cross multiply
   18,517.41x = 25,553.98 × 10,019.50
4. Step 4: Simplify right side
   18,517.41x = 256,038,102.61
5. Step 5: Solve for x
   x = 256,038,102.61/18,517.41
6. Step 6: Final answer
   x = 13,826.89