Finding the Fourth Proportional to 25,142.50, 34,697.73 and 13,964.50

Step by Step Solution

1. Step 1: Write the proportion equation
   25,142.50 : 34,697.73 = 13,964.50 : x
2. Step 2: Convert to fraction form
   25,142.50/34,697.73 = 13,964.50/x
3. Step 3: Cross multiply
   25,142.50x = 34,697.73 × 13,964.50
4. Step 4: Simplify right side
   25,142.50x = 484,536,450.59
5. Step 5: Solve for x
   x = 484,536,450.59/25,142.50
6. Step 6: Final answer
   x = 19,271.61