Finding the Fourth Proportional to 16,937.39, 25,371.45 and 7,918.61

Step by Step Solution

1. Step 1: Write the proportion equation
   16,937.39 : 25,371.45 = 7,918.61 : x
2. Step 2: Convert to fraction form
   16,937.39/25,371.45 = 7,918.61/x
3. Step 3: Cross multiply
   16,937.39x = 25,371.45 × 7,918.61
4. Step 4: Simplify right side
   16,937.39x = 200,906,490.83
5. Step 5: Solve for x
   x = 200,906,490.83/16,937.39
6. Step 6: Final answer
   x = 11,861.71