Finding the Fourth Proportional to 10,875.99, 16,264.17 and 8,104.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,875.99 : 16,264.17 = 8,104.59 : x
2. Step 2: Convert to fraction form
   10,875.99/16,264.17 = 8,104.59/x
3. Step 3: Cross multiply
   10,875.99x = 16,264.17 × 8,104.59
4. Step 4: Simplify right side
   10,875.99x = 131,814,429.54
5. Step 5: Solve for x
   x = 131,814,429.54/10,875.99
6. Step 6: Final answer
   x = 12,119.76