Finding the Fourth Proportional to 16,978.56, 25,461.35 and 9,183.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,978.56 : 25,461.35 = 9,183.12 : x
2. Step 2: Convert to fraction form
   16,978.56/25,461.35 = 9,183.12/x
3. Step 3: Cross multiply
   16,978.56x = 25,461.35 × 9,183.12
4. Step 4: Simplify right side
   16,978.56x = 233,814,632.41
5. Step 5: Solve for x
   x = 233,814,632.41/16,978.56
6. Step 6: Final answer
   x = 13,771.17