Finding the Fourth Proportional to 12,297.83, 18,449.12 and 3,979.91

Step by Step Solution

1. Step 1: Write the proportion equation
   12,297.83 : 18,449.12 = 3,979.91 : x
2. Step 2: Convert to fraction form
   12,297.83/18,449.12 = 3,979.91/x
3. Step 3: Cross multiply
   12,297.83x = 18,449.12 × 3,979.91
4. Step 4: Simplify right side
   12,297.83x = 73,425,817.28
5. Step 5: Solve for x
   x = 73,425,817.28/12,297.83
6. Step 6: Final answer
   x = 5,970.63