Finding the Fourth Proportional to 10,856.50, 16,260.14 and 8,501.83

Step by Step Solution

1. Step 1: Write the proportion equation
   10,856.50 : 16,260.14 = 8,501.83 : x
2. Step 2: Convert to fraction form
   10,856.50/16,260.14 = 8,501.83/x
3. Step 3: Cross multiply
   10,856.50x = 16,260.14 × 8,501.83
4. Step 4: Simplify right side
   10,856.50x = 138,240,843.50
5. Step 5: Solve for x
   x = 138,240,843.50/10,856.50
6. Step 6: Final answer
   x = 12,733.47