Finding the Fourth Proportional to 25,101.69, 34,640.59 and 13,771.20

Step by Step Solution

1. Step 1: Write the proportion equation
   25,101.69 : 34,640.59 = 13,771.20 : x
2. Step 2: Convert to fraction form
   25,101.69/34,640.59 = 13,771.20/x
3. Step 3: Cross multiply
   25,101.69x = 34,640.59 × 13,771.20
4. Step 4: Simplify right side
   25,101.69x = 477,042,493.01
5. Step 5: Solve for x
   x = 477,042,493.01/25,101.69
6. Step 6: Final answer
   x = 19,004.40