Finding the Fourth Proportional to 10,883.52, 16,275.39 and 8,112.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,883.52 : 16,275.39 = 8,112.12 : x
2. Step 2: Convert to fraction form
   10,883.52/16,275.39 = 8,112.12/x
3. Step 3: Cross multiply
   10,883.52x = 16,275.39 × 8,112.12
4. Step 4: Simplify right side
   10,883.52x = 132,027,916.73
5. Step 5: Solve for x
   x = 132,027,916.73/10,883.52
6. Step 6: Final answer
   x = 12,130.99