Finding the Fourth Proportional to 16,685.82, 23,023.62 and 9,974.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,685.82 : 23,023.62 = 9,974.16 : x
2. Step 2: Convert to fraction form
   16,685.82/23,023.62 = 9,974.16/x
3. Step 3: Cross multiply
   16,685.82x = 23,023.62 × 9,974.16
4. Step 4: Simplify right side
   16,685.82x = 229,641,269.66
5. Step 5: Solve for x
   x = 229,641,269.66/16,685.82
6. Step 6: Final answer
   x = 13,762.66