Finding the Fourth Proportional to 18,540.38, 25,585.82 and 10,156.88

Step by Step Solution

1. Step 1: Write the proportion equation
   18,540.38 : 25,585.82 = 10,156.88 : x
2. Step 2: Convert to fraction form
   18,540.38/25,585.82 = 10,156.88/x
3. Step 3: Cross multiply
   18,540.38x = 25,585.82 × 10,156.88
4. Step 4: Simplify right side
   18,540.38x = 259,871,924.73
5. Step 5: Solve for x
   x = 259,871,924.73/18,540.38
6. Step 6: Final answer
   x = 14,016.54