Finding the Fourth Proportional to 16,843.01, 23,242.28 and 9,288.91

Step by Step Solution

1. Step 1: Write the proportion equation
   16,843.01 : 23,242.28 = 9,288.91 : x
2. Step 2: Convert to fraction form
   16,843.01/23,242.28 = 9,288.91/x
3. Step 3: Cross multiply
   16,843.01x = 23,242.28 × 9,288.91
4. Step 4: Simplify right side
   16,843.01x = 215,895,429.72
5. Step 5: Solve for x
   x = 215,895,429.72/16,843.01
6. Step 6: Final answer
   x = 12,818.11