Finding the Fourth Proportional to 16,389.48, 24,541.38 and 8,978.52

Step by Step Solution

1. Step 1: Write the proportion equation
   16,389.48 : 24,541.38 = 8,978.52 : x
2. Step 2: Convert to fraction form
   16,389.48/24,541.38 = 8,978.52/x
3. Step 3: Cross multiply
   16,389.48x = 24,541.38 × 8,978.52
4. Step 4: Simplify right side
   16,389.48x = 220,345,271.16
5. Step 5: Solve for x
   x = 220,345,271.16/16,389.48
6. Step 6: Final answer
   x = 13,444.31