Finding the Fourth Proportional to 17,978.57, 24,809.94 and 10,321.62

Step by Step Solution

1. Step 1: Write the proportion equation
   17,978.57 : 24,809.94 = 10,321.62 : x
2. Step 2: Convert to fraction form
   17,978.57/24,809.94 = 10,321.62/x
3. Step 3: Cross multiply
   17,978.57x = 24,809.94 × 10,321.62
4. Step 4: Simplify right side
   17,978.57x = 256,078,720.61
5. Step 5: Solve for x
   x = 256,078,720.61/17,978.57
6. Step 6: Final answer
   x = 14,243.56