Finding the Fourth Proportional to 12,301.83, 18,455.12 and 3,983.91

Step by Step Solution

1. Step 1: Write the proportion equation
   12,301.83 : 18,455.12 = 3,983.91 : x
2. Step 2: Convert to fraction form
   12,301.83/18,455.12 = 3,983.91/x
3. Step 3: Cross multiply
   12,301.83x = 18,455.12 × 3,983.91
4. Step 4: Simplify right side
   12,301.83x = 73,523,517.20
5. Step 5: Solve for x
   x = 73,523,517.20/12,301.83
6. Step 6: Final answer
   x = 5,976.63