Finding the Fourth Proportional to 13,217.50, 19,829.55 and 3,983.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,217.50 : 19,829.55 = 3,983.50 : x
2. Step 2: Convert to fraction form
   13,217.50/19,829.55 = 3,983.50/x
3. Step 3: Cross multiply
   13,217.50x = 19,829.55 × 3,983.50
4. Step 4: Simplify right side
   13,217.50x = 78,991,012.43
5. Step 5: Solve for x
   x = 78,991,012.43/13,217.50
6. Step 6: Final answer
   x = 5,976.24