Finding the Fourth Proportional to 12,875.92, 17,766.46 and 7,571.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,875.92 : 17,766.46 = 7,571.80 : x
2. Step 2: Convert to fraction form
   12,875.92/17,766.46 = 7,571.80/x
3. Step 3: Cross multiply
   12,875.92x = 17,766.46 × 7,571.80
4. Step 4: Simplify right side
   12,875.92x = 134,524,081.83
5. Step 5: Solve for x
   x = 134,524,081.83/12,875.92
6. Step 6: Final answer
   x = 10,447.73