Finding the Fourth Proportional to 18,180.00, 25,067.71 and 12,800.71

Step by Step Solution

1. Step 1: Write the proportion equation
   18,180.00 : 25,067.71 = 12,800.71 : x
2. Step 2: Convert to fraction form
   18,180.00/25,067.71 = 12,800.71/x
3. Step 3: Cross multiply
   18,180.00x = 25,067.71 × 12,800.71
4. Step 4: Simplify right side
   18,180.00x = 320,884,532.74
5. Step 5: Solve for x
   x = 320,884,532.74/18,180.00
6. Step 6: Final answer
   x = 17,650.42