Finding the Fourth Proportional to 21,562.71, 29,756.28 and 12,002.42

Step by Step Solution

1. Step 1: Write the proportion equation
   21,562.71 : 29,756.28 = 12,002.42 : x
2. Step 2: Convert to fraction form
   21,562.71/29,756.28 = 12,002.42/x
3. Step 3: Cross multiply
   21,562.71x = 29,756.28 × 12,002.42
4. Step 4: Simplify right side
   21,562.71x = 357,147,370.20
5. Step 5: Solve for x
   x = 357,147,370.20/21,562.71
6. Step 6: Final answer
   x = 16,563.19