Finding the Fourth Proportional to 13,282.82, 18,325.34 and 7,615.55

Step by Step Solution

1. Step 1: Write the proportion equation
   13,282.82 : 18,325.34 = 7,615.55 : x
2. Step 2: Convert to fraction form
   13,282.82/18,325.34 = 7,615.55/x
3. Step 3: Cross multiply
   13,282.82x = 18,325.34 × 7,615.55
4. Step 4: Simplify right side
   13,282.82x = 139,557,579.33
5. Step 5: Solve for x
   x = 139,557,579.33/13,282.82
6. Step 6: Final answer
   x = 10,506.62