Finding the Fourth Proportional to 16,517.04, 22,791.96 and 13,380.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,517.04 : 22,791.96 = 13,380.72 : x
2. Step 2: Convert to fraction form
   16,517.04/22,791.96 = 13,380.72/x
3. Step 3: Cross multiply
   16,517.04x = 22,791.96 × 13,380.72
4. Step 4: Simplify right side
   16,517.04x = 304,972,835.01
5. Step 5: Solve for x
   x = 304,972,835.01/16,517.04
6. Step 6: Final answer
   x = 18,464.13