Finding the Fourth Proportional to 25,288.47, 34,898.04 and 13,957.97

Step by Step Solution

1. Step 1: Write the proportion equation
   25,288.47 : 34,898.04 = 13,957.97 : x
2. Step 2: Convert to fraction form
   25,288.47/34,898.04 = 13,957.97/x
3. Step 3: Cross multiply
   25,288.47x = 34,898.04 × 13,957.97
4. Step 4: Simplify right side
   25,288.47x = 487,105,620.89
5. Step 5: Solve for x
   x = 487,105,620.89/25,288.47
6. Step 6: Final answer
   x = 19,261.96