Finding the Fourth Proportional to 16,818.69, 23,210.37 and 9,265.53

Step by Step Solution

1. Step 1: Write the proportion equation
   16,818.69 : 23,210.37 = 9,265.53 : x
2. Step 2: Convert to fraction form
   16,818.69/23,210.37 = 9,265.53/x
3. Step 3: Cross multiply
   16,818.69x = 23,210.37 × 9,265.53
4. Step 4: Simplify right side
   16,818.69x = 215,056,379.55
5. Step 5: Solve for x
   x = 215,056,379.55/16,818.69
6. Step 6: Final answer
   x = 12,786.75