Finding the Fourth Proportional to 12,063.25, 16,647.33 and 7,871.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,063.25 : 16,647.33 = 7,871.50 : x
2. Step 2: Convert to fraction form
   12,063.25/16,647.33 = 7,871.50/x
3. Step 3: Cross multiply
   12,063.25x = 16,647.33 × 7,871.50
4. Step 4: Simplify right side
   12,063.25x = 131,039,458.10
5. Step 5: Solve for x
   x = 131,039,458.10/12,063.25
6. Step 6: Final answer
   x = 10,862.70