Finding the Fourth Proportional to 16,143.18, 22,290.03 and 13,013.34

Step by Step Solution

1. Step 1: Write the proportion equation
   16,143.18 : 22,290.03 = 13,013.34 : x
2. Step 2: Convert to fraction form
   16,143.18/22,290.03 = 13,013.34/x
3. Step 3: Cross multiply
   16,143.18x = 22,290.03 × 13,013.34
4. Step 4: Simplify right side
   16,143.18x = 290,067,739.00
5. Step 5: Solve for x
   x = 290,067,739.00/16,143.18
6. Step 6: Final answer
   x = 17,968.44