Finding the Fourth Proportional to 25,940.25, 38,915.24 and 12,089.25

Step by Step Solution

1. Step 1: Write the proportion equation
   25,940.25 : 38,915.24 = 12,089.25 : x
2. Step 2: Convert to fraction form
   25,940.25/38,915.24 = 12,089.25/x
3. Step 3: Cross multiply
   25,940.25x = 38,915.24 × 12,089.25
4. Step 4: Simplify right side
   25,940.25x = 470,456,004.72
5. Step 5: Solve for x
   x = 470,456,004.72/25,940.25
6. Step 6: Final answer
   x = 18,136.14