Finding the Fourth Proportional to 18,507.75, 25,540.71 and 10,124.25

Step by Step Solution

1. Step 1: Write the proportion equation
   18,507.75 : 25,540.71 = 10,124.25 : x
2. Step 2: Convert to fraction form
   18,507.75/25,540.71 = 10,124.25/x
3. Step 3: Cross multiply
   18,507.75x = 25,540.71 × 10,124.25
4. Step 4: Simplify right side
   18,507.75x = 258,580,533.22
5. Step 5: Solve for x
   x = 258,580,533.22/18,507.75
6. Step 6: Final answer
   x = 13,971.47