Finding the Fourth Proportional to 10,678.72, 16,010.16 and 8,043.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,678.72 : 16,010.16 = 8,043.52 : x
2. Step 2: Convert to fraction form
   10,678.72/16,010.16 = 8,043.52/x
3. Step 3: Cross multiply
   10,678.72x = 16,010.16 × 8,043.52
4. Step 4: Simplify right side
   10,678.72x = 128,778,042.16
5. Step 5: Solve for x
   x = 128,778,042.16/10,678.72
6. Step 6: Final answer
   x = 12,059.31