Finding the Fourth Proportional to 13,308.12, 19,965.15 and 5,517

Step by Step Solution

1. Step 1: Write the proportion equation
   13,308.12 : 19,965.15 = 5,517 : x
2. Step 2: Convert to fraction form
   13,308.12/19,965.15 = 5,517/x
3. Step 3: Cross multiply
   13,308.12x = 19,965.15 × 5,517
4. Step 4: Simplify right side
   13,308.12x = 110,147,732.55
5. Step 5: Solve for x
   x = 110,147,732.55/13,308.12
6. Step 6: Final answer
   x = 8,276.73