Finding the Fourth Proportional to 16,813.77, 25,223.42 and 5,124.25

Step by Step Solution

1. Step 1: Write the proportion equation
   16,813.77 : 25,223.42 = 5,124.25 : x
2. Step 2: Convert to fraction form
   16,813.77/25,223.42 = 5,124.25/x
3. Step 3: Cross multiply
   16,813.77x = 25,223.42 × 5,124.25
4. Step 4: Simplify right side
   16,813.77x = 129,251,109.94
5. Step 5: Solve for x
   x = 129,251,109.94/16,813.77
6. Step 6: Final answer
   x = 7,687.22