Finding the Fourth Proportional to 10,747.04, 16,105.82 and 8,112.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,747.04 : 16,105.82 = 8,112.30 : x
2. Step 2: Convert to fraction form
   10,747.04/16,105.82 = 8,112.30/x
3. Step 3: Cross multiply
   10,747.04x = 16,105.82 × 8,112.30
4. Step 4: Simplify right side
   10,747.04x = 130,655,243.59
5. Step 5: Solve for x
   x = 130,655,243.59/10,747.04
6. Step 6: Final answer
   x = 12,157.32