Finding the Fourth Proportional to 25,112.45, 37,644.71 and 8,463.89

Step by Step Solution

1. Step 1: Write the proportion equation
   25,112.45 : 37,644.71 = 8,463.89 : x
2. Step 2: Convert to fraction form
   25,112.45/37,644.71 = 8,463.89/x
3. Step 3: Cross multiply
   25,112.45x = 37,644.71 × 8,463.89
4. Step 4: Simplify right side
   25,112.45x = 318,620,453.98
5. Step 5: Solve for x
   x = 318,620,453.98/25,112.45
6. Step 6: Final answer
   x = 12,687.75