Finding the Fourth Proportional to 21,443.99, 29,576.89 and 14,730.71

Step by Step Solution

1. Step 1: Write the proportion equation
   21,443.99 : 29,576.89 = 14,730.71 : x
2. Step 2: Convert to fraction form
   21,443.99/29,576.89 = 14,730.71/x
3. Step 3: Cross multiply
   21,443.99x = 29,576.89 × 14,730.71
4. Step 4: Simplify right side
   21,443.99x = 435,688,589.29
5. Step 5: Solve for x
   x = 435,688,589.29/21,443.99
6. Step 6: Final answer
   x = 20,317.52