Finding the Fourth Proportional to 21,821.83, 30,111.78 and 14,650.29

Step by Step Solution

1. Step 1: Write the proportion equation
   21,821.83 : 30,111.78 = 14,650.29 : x
2. Step 2: Convert to fraction form
   21,821.83/30,111.78 = 14,650.29/x
3. Step 3: Cross multiply
   21,821.83x = 30,111.78 × 14,650.29
4. Step 4: Simplify right side
   21,821.83x = 441,146,364.35
5. Step 5: Solve for x
   x = 441,146,364.35/21,821.83
6. Step 6: Final answer
   x = 20,215.83