Finding the Fourth Proportional to 12,983.25, 19,479.41 and 4,099.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,983.25 : 19,479.41 = 4,099.96 : x
2. Step 2: Convert to fraction form
   12,983.25/19,479.41 = 4,099.96/x
3. Step 3: Cross multiply
   12,983.25x = 19,479.41 × 4,099.96
4. Step 4: Simplify right side
   12,983.25x = 79,864,801.82
5. Step 5: Solve for x
   x = 79,864,801.82/12,983.25
6. Step 6: Final answer
   x = 6,151.37