Finding the Fourth Proportional to 25,865.98, 38,791.89 and 7,141.54

Step by Step Solution

1. Step 1: Write the proportion equation
   25,865.98 : 38,791.89 = 7,141.54 : x
2. Step 2: Convert to fraction form
   25,865.98/38,791.89 = 7,141.54/x
3. Step 3: Cross multiply
   25,865.98x = 38,791.89 × 7,141.54
4. Step 4: Simplify right side
   25,865.98x = 277,033,834.11
5. Step 5: Solve for x
   x = 277,033,834.11/25,865.98
6. Step 6: Final answer
   x = 10,710.36