Finding the Fourth Proportional to 16,216.12, 22,378.28 and 8,764.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,216.12 : 22,378.28 = 8,764.12 : x
2. Step 2: Convert to fraction form
   16,216.12/22,378.28 = 8,764.12/x
3. Step 3: Cross multiply
   16,216.12x = 22,378.28 × 8,764.12
4. Step 4: Simplify right side
   16,216.12x = 196,125,931.31
5. Step 5: Solve for x
   x = 196,125,931.31/16,216.12
6. Step 6: Final answer
   x = 12,094.50