Finding the Fourth Proportional to 12,263.41, 16,929.50 and 8,228.79

Step by Step Solution

1. Step 1: Write the proportion equation
   12,263.41 : 16,929.50 = 8,228.79 : x
2. Step 2: Convert to fraction form
   12,263.41/16,929.50 = 8,228.79/x
3. Step 3: Cross multiply
   12,263.41x = 16,929.50 × 8,228.79
4. Step 4: Simplify right side
   12,263.41x = 139,309,300.31
5. Step 5: Solve for x
   x = 139,309,300.31/12,263.41
6. Step 6: Final answer
   x = 11,359.75