Finding the Fourth Proportional to 13,480.94, 18,604.59 and 7,513.58

Step by Step Solution

1. Step 1: Write the proportion equation
   13,480.94 : 18,604.59 = 7,513.58 : x
2. Step 2: Convert to fraction form
   13,480.94/18,604.59 = 7,513.58/x
3. Step 3: Cross multiply
   13,480.94x = 18,604.59 × 7,513.58
4. Step 4: Simplify right side
   13,480.94x = 139,787,075.33
5. Step 5: Solve for x
   x = 139,787,075.33/13,480.94
6. Step 6: Final answer
   x = 10,369.24