Finding the Fourth Proportional to 25,116.78, 37,648.98 and 8,471.10

Step by Step Solution

1. Step 1: Write the proportion equation
   25,116.78 : 37,648.98 = 8,471.10 : x
2. Step 2: Convert to fraction form
   25,116.78/37,648.98 = 8,471.10/x
3. Step 3: Cross multiply
   25,116.78x = 37,648.98 × 8,471.10
4. Step 4: Simplify right side
   25,116.78x = 318,928,274.48
5. Step 5: Solve for x
   x = 318,928,274.48/25,116.78
6. Step 6: Final answer
   x = 12,697.82