Finding the Fourth Proportional to 16,825.74, 25,210.71 and 10,231.98

Step by Step Solution

1. Step 1: Write the proportion equation
   16,825.74 : 25,210.71 = 10,231.98 : x
2. Step 2: Convert to fraction form
   16,825.74/25,210.71 = 10,231.98/x
3. Step 3: Cross multiply
   16,825.74x = 25,210.71 × 10,231.98
4. Step 4: Simplify right side
   16,825.74x = 257,955,480.51
5. Step 5: Solve for x
   x = 257,955,480.51/16,825.74
6. Step 6: Final answer
   x = 15,331.00