Finding the Fourth Proportional to 16,969.77, 23,418.42 and 9,416.61

Step by Step Solution

1. Step 1: Write the proportion equation
   16,969.77 : 23,418.42 = 9,416.61 : x
2. Step 2: Convert to fraction form
   16,969.77/23,418.42 = 9,416.61/x
3. Step 3: Cross multiply
   16,969.77x = 23,418.42 × 9,416.61
4. Step 4: Simplify right side
   16,969.77x = 220,522,127.96
5. Step 5: Solve for x
   x = 220,522,127.96/16,969.77
6. Step 6: Final answer
   x = 12,995.00