Finding the Fourth Proportional to 16,843.55, 23,245.18 and 9,289.89

Step by Step Solution

1. Step 1: Write the proportion equation
   16,843.55 : 23,245.18 = 9,289.89 : x
2. Step 2: Convert to fraction form
   16,843.55/23,245.18 = 9,289.89/x
3. Step 3: Cross multiply
   16,843.55x = 23,245.18 × 9,289.89
4. Step 4: Simplify right side
   16,843.55x = 215,945,142.01
5. Step 5: Solve for x
   x = 215,945,142.01/16,843.55
6. Step 6: Final answer
   x = 12,820.65