Finding the Fourth Proportional to 22,012.16, 30,356.48 and 14,949.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,012.16 : 30,356.48 = 14,949.12 : x
2. Step 2: Convert to fraction form
   22,012.16/30,356.48 = 14,949.12/x
3. Step 3: Cross multiply
   22,012.16x = 30,356.48 × 14,949.12
4. Step 4: Simplify right side
   22,012.16x = 453,802,662.30
5. Step 5: Solve for x
   x = 453,802,662.30/22,012.16
6. Step 6: Final answer
   x = 20,616.00