Finding the Fourth Proportional to 16,686.27, 25,003.05 and 13,551.02

Step by Step Solution

1. Step 1: Write the proportion equation
   16,686.27 : 25,003.05 = 13,551.02 : x
2. Step 2: Convert to fraction form
   16,686.27/25,003.05 = 13,551.02/x
3. Step 3: Cross multiply
   16,686.27x = 25,003.05 × 13,551.02
4. Step 4: Simplify right side
   16,686.27x = 338,816,705.60
5. Step 5: Solve for x
   x = 338,816,705.60/16,686.27
6. Step 6: Final answer
   x = 20,305.12