Finding the Fourth Proportional to 25,171.71, 37,733.98 and 8,520.09

Step by Step Solution

1. Step 1: Write the proportion equation
   25,171.71 : 37,733.98 = 8,520.09 : x
2. Step 2: Convert to fraction form
   25,171.71/37,733.98 = 8,520.09/x
3. Step 3: Cross multiply
   25,171.71x = 37,733.98 × 8,520.09
4. Step 4: Simplify right side
   25,171.71x = 321,496,905.66
5. Step 5: Solve for x
   x = 321,496,905.66/25,171.71
6. Step 6: Final answer
   x = 12,772.15