Finding the Fourth Proportional to 16,216.61, 22,378.91 and 8,764.61

Step by Step Solution

1. Step 1: Write the proportion equation
   16,216.61 : 22,378.91 = 8,764.61 : x
2. Step 2: Convert to fraction form
   16,216.61/22,378.91 = 8,764.61/x
3. Step 3: Cross multiply
   16,216.61x = 22,378.91 × 8,764.61
4. Step 4: Simplify right side
   16,216.61x = 196,142,262.66
5. Step 5: Solve for x
   x = 196,142,262.66/16,216.61
6. Step 6: Final answer
   x = 12,095.15