Finding the Fourth Proportional to 13,103.82, 18,083.25 and 7,135.51

Step by Step Solution

1. Step 1: Write the proportion equation
   13,103.82 : 18,083.25 = 7,135.51 : x
2. Step 2: Convert to fraction form
   13,103.82/18,083.25 = 7,135.51/x
3. Step 3: Cross multiply
   13,103.82x = 18,083.25 × 7,135.51
4. Step 4: Simplify right side
   13,103.82x = 129,033,211.21
5. Step 5: Solve for x
   x = 129,033,211.21/13,103.82
6. Step 6: Final answer
   x = 9,846.99