Finding the Fourth Proportional to 13,103.92, 18,083.31 and 7,135.59

Step by Step Solution

1. Step 1: Write the proportion equation
   13,103.92 : 18,083.31 = 7,135.59 : x
2. Step 2: Convert to fraction form
   13,103.92/18,083.31 = 7,135.59/x
3. Step 3: Cross multiply
   13,103.92x = 18,083.31 × 7,135.59
4. Step 4: Simplify right side
   13,103.92x = 129,035,086.00
5. Step 5: Solve for x
   x = 129,035,086.00/13,103.92
6. Step 6: Final answer
   x = 9,847.06