Finding the Fourth Proportional to 25,186.38, 34,757.83 and 13,856.18

Step by Step Solution

1. Step 1: Write the proportion equation
   25,186.38 : 34,757.83 = 13,856.18 : x
2. Step 2: Convert to fraction form
   25,186.38/34,757.83 = 13,856.18/x
3. Step 3: Cross multiply
   25,186.38x = 34,757.83 × 13,856.18
4. Step 4: Simplify right side
   25,186.38x = 481,610,679.61
5. Step 5: Solve for x
   x = 481,610,679.61/25,186.38
6. Step 6: Final answer
   x = 19,121.87