Finding the Fourth Proportional to 10,969.92, 16,518.18 and 8,068.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,969.92 : 16,518.18 = 8,068.56 : x
2. Step 2: Convert to fraction form
   10,969.92/16,518.18 = 8,068.56/x
3. Step 3: Cross multiply
   10,969.92x = 16,518.18 × 8,068.56
4. Step 4: Simplify right side
   10,969.92x = 133,277,926.42
5. Step 5: Solve for x
   x = 133,277,926.42/10,969.92
6. Step 6: Final answer
   x = 12,149.40