Finding the Fourth Proportional to 22,116.47, 30,520.27 and 12,045.09

Step by Step Solution

1. Step 1: Write the proportion equation
   22,116.47 : 30,520.27 = 12,045.09 : x
2. Step 2: Convert to fraction form
   22,116.47/30,520.27 = 12,045.09/x
3. Step 3: Cross multiply
   22,116.47x = 30,520.27 × 12,045.09
4. Step 4: Simplify right side
   22,116.47x = 367,619,299.58
5. Step 5: Solve for x
   x = 367,619,299.58/22,116.47
6. Step 6: Final answer
   x = 16,621.97