Finding the Fourth Proportional to 25,185.82, 34,756.61 and 13,856.05

Step by Step Solution

1. Step 1: Write the proportion equation
   25,185.82 : 34,756.61 = 13,856.05 : x
2. Step 2: Convert to fraction form
   25,185.82/34,756.61 = 13,856.05/x
3. Step 3: Cross multiply
   25,185.82x = 34,756.61 × 13,856.05
4. Step 4: Simplify right side
   25,185.82x = 481,589,325.99
5. Step 5: Solve for x
   x = 481,589,325.99/25,185.82
6. Step 6: Final answer
   x = 19,121.45