Finding the Fourth Proportional to 25,186.73, 34,756.59 and 13,855.50

Step by Step Solution

1. Step 1: Write the proportion equation
   25,186.73 : 34,756.59 = 13,855.50 : x
2. Step 2: Convert to fraction form
   25,186.73/34,756.59 = 13,855.50/x
3. Step 3: Cross multiply
   25,186.73x = 34,756.59 × 13,855.50
4. Step 4: Simplify right side
   25,186.73x = 481,569,950.36
5. Step 5: Solve for x
   x = 481,569,950.36/25,186.73
6. Step 6: Final answer
   x = 19,119.99