Finding the Fourth Proportional to 13,017.50, 19,511.49 and 5,516.39

Step by Step Solution

1. Step 1: Write the proportion equation
   13,017.50 : 19,511.49 = 5,516.39 : x
2. Step 2: Convert to fraction form
   13,017.50/19,511.49 = 5,516.39/x
3. Step 3: Cross multiply
   13,017.50x = 19,511.49 × 5,516.39
4. Step 4: Simplify right side
   13,017.50x = 107,633,037.10
5. Step 5: Solve for x
   x = 107,633,037.10/13,017.50
6. Step 6: Final answer
   x = 8,268.33