Finding the Fourth Proportional to 16,841.86, 23,242.83 and 9,288.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,841.86 : 23,242.83 = 9,288.20 : x
2. Step 2: Convert to fraction form
   16,841.86/23,242.83 = 9,288.20/x
3. Step 3: Cross multiply
   16,841.86x = 23,242.83 × 9,288.20
4. Step 4: Simplify right side
   16,841.86x = 215,884,059.44
5. Step 5: Solve for x
   x = 215,884,059.44/16,841.86
6. Step 6: Final answer
   x = 12,818.31