Finding the Fourth Proportional to 16,843.71, 23,243.77 and 9,290.35

Step by Step Solution

1. Step 1: Write the proportion equation
   16,843.71 : 23,243.77 = 9,290.35 : x
2. Step 2: Convert to fraction form
   16,843.71/23,243.77 = 9,290.35/x
3. Step 3: Cross multiply
   16,843.71x = 23,243.77 × 9,290.35
4. Step 4: Simplify right side
   16,843.71x = 215,942,758.62
5. Step 5: Solve for x
   x = 215,942,758.62/16,843.71
6. Step 6: Final answer
   x = 12,820.38