Finding the Fourth Proportional to 25,142.25, 37,717.46 and 8,503.30

Step by Step Solution

1. Step 1: Write the proportion equation
   25,142.25 : 37,717.46 = 8,503.30 : x
2. Step 2: Convert to fraction form
   25,142.25/37,717.46 = 8,503.30/x
3. Step 3: Cross multiply
   25,142.25x = 37,717.46 × 8,503.30
4. Step 4: Simplify right side
   25,142.25x = 320,722,877.62
5. Step 5: Solve for x
   x = 320,722,877.62/25,142.25
6. Step 6: Final answer
   x = 12,756.33