Finding the Fourth Proportional to 12,305.05, 18,449.37 and 5,978.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,305.05 : 18,449.37 = 5,978.24 : x
2. Step 2: Convert to fraction form
   12,305.05/18,449.37 = 5,978.24/x
3. Step 3: Cross multiply
   12,305.05x = 18,449.37 × 5,978.24
4. Step 4: Simplify right side
   12,305.05x = 110,294,700.64
5. Step 5: Solve for x
   x = 110,294,700.64/12,305.05
6. Step 6: Final answer
   x = 8,963.37