Finding the Fourth Proportional to 25,142.58, 34,695.81 and 13,965.30

Step by Step Solution

1. Step 1: Write the proportion equation
   25,142.58 : 34,695.81 = 13,965.30 : x
2. Step 2: Convert to fraction form
   25,142.58/34,695.81 = 13,965.30/x
3. Step 3: Cross multiply
   25,142.58x = 34,695.81 × 13,965.30
4. Step 4: Simplify right side
   25,142.58x = 484,537,395.39
5. Step 5: Solve for x
   x = 484,537,395.39/25,142.58
6. Step 6: Final answer
   x = 19,271.59