Finding the Fourth Proportional to 21,832.91, 30,105.58 and 14,747.03

Step by Step Solution

1. Step 1: Write the proportion equation
   21,832.91 : 30,105.58 = 14,747.03 : x
2. Step 2: Convert to fraction form
   21,832.91/30,105.58 = 14,747.03/x
3. Step 3: Cross multiply
   21,832.91x = 30,105.58 × 14,747.03
4. Step 4: Simplify right side
   21,832.91x = 443,967,817.69
5. Step 5: Solve for x
   x = 443,967,817.69/21,832.91
6. Step 6: Final answer
   x = 20,334.80