Finding the Fourth Proportional to 21,433.43, 29,578.10 and 12,002.00

Step by Step Solution

1. Step 1: Write the proportion equation
   21,433.43 : 29,578.10 = 12,002.00 : x
2. Step 2: Convert to fraction form
   21,433.43/29,578.10 = 12,002.00/x
3. Step 3: Cross multiply
   21,433.43x = 29,578.10 × 12,002.00
4. Step 4: Simplify right side
   21,433.43x = 354,996,148.30
5. Step 5: Solve for x
   x = 354,996,148.30/21,433.43
6. Step 6: Final answer
   x = 16,562.73