Finding the Fourth Proportional to 16,030.76, 22,116.17 and 9,315.18

Step by Step Solution

1. Step 1: Write the proportion equation
   16,030.76 : 22,116.17 = 9,315.18 : x
2. Step 2: Convert to fraction form
   16,030.76/22,116.17 = 9,315.18/x
3. Step 3: Cross multiply
   16,030.76x = 22,116.17 × 9,315.18
4. Step 4: Simplify right side
   16,030.76x = 206,016,127.75
5. Step 5: Solve for x
   x = 206,016,127.75/16,030.76
6. Step 6: Final answer
   x = 12,851.31