Finding the Fourth Proportional to 18,456.02, 25,469.34 and 10,072.52

Step by Step Solution

1. Step 1: Write the proportion equation
   18,456.02 : 25,469.34 = 10,072.52 : x
2. Step 2: Convert to fraction form
   18,456.02/25,469.34 = 10,072.52/x
3. Step 3: Cross multiply
   18,456.02x = 25,469.34 × 10,072.52
4. Step 4: Simplify right side
   18,456.02x = 256,540,436.54
5. Step 5: Solve for x
   x = 256,540,436.54/18,456.02
6. Step 6: Final answer
   x = 13,900.10