Finding the Fourth Proportional to 13,103.33, 18,080.56 and 7,513.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13,103.33 : 18,080.56 = 7,513.25 : x
2. Step 2: Convert to fraction form
   13,103.33/18,080.56 = 7,513.25/x
3. Step 3: Cross multiply
   13,103.33x = 18,080.56 × 7,513.25
4. Step 4: Simplify right side
   13,103.33x = 135,843,767.42
5. Step 5: Solve for x
   x = 135,843,767.42/13,103.33
6. Step 6: Final answer
   x = 10,367.12