Finding the Fourth Proportional to 25,258.56, 37,898.72 and 10,478.24

Step by Step Solution

1. Step 1: Write the proportion equation
   25,258.56 : 37,898.72 = 10,478.24 : x
2. Step 2: Convert to fraction form
   25,258.56/37,898.72 = 10,478.24/x
3. Step 3: Cross multiply
   25,258.56x = 37,898.72 × 10,478.24
4. Step 4: Simplify right side
   25,258.56x = 397,111,883.85
5. Step 5: Solve for x
   x = 397,111,883.85/25,258.56
6. Step 6: Final answer
   x = 15,721.87