Finding the Fourth Proportional to 16,871.99, 25,308.03 and 5,185.13

Step by Step Solution

1. Step 1: Write the proportion equation
   16,871.99 : 25,308.03 = 5,185.13 : x
2. Step 2: Convert to fraction form
   16,871.99/25,308.03 = 5,185.13/x
3. Step 3: Cross multiply
   16,871.99x = 25,308.03 × 5,185.13
4. Step 4: Simplify right side
   16,871.99x = 131,225,425.59
5. Step 5: Solve for x
   x = 131,225,425.59/16,871.99
6. Step 6: Final answer
   x = 7,777.71