Finding the Fourth Proportional to 31,116.11, 42,940.22 and 16,968.96

Step by Step Solution

1. Step 1: Write the proportion equation
   31,116.11 : 42,940.22 = 16,968.96 : x
2. Step 2: Convert to fraction form
   31,116.11/42,940.22 = 16,968.96/x
3. Step 3: Cross multiply
   31,116.11x = 42,940.22 × 16,968.96
4. Step 4: Simplify right side
   31,116.11x = 728,650,790.73
5. Step 5: Solve for x
   x = 728,650,790.73/31,116.11
6. Step 6: Final answer
   x = 23,417.16