Finding the Fourth Proportional to 13,708.82, 18,918.69 and 7,741.15

Step by Step Solution

1. Step 1: Write the proportion equation
   13,708.82 : 18,918.69 = 7,741.15 : x
2. Step 2: Convert to fraction form
   13,708.82/18,918.69 = 7,741.15/x
3. Step 3: Cross multiply
   13,708.82x = 18,918.69 × 7,741.15
4. Step 4: Simplify right side
   13,708.82x = 146,452,417.09
5. Step 5: Solve for x
   x = 146,452,417.09/13,708.82
6. Step 6: Final answer
   x = 10,683.08