Finding the Fourth Proportional to 13,105.82, 18,086.74 and 7,516.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,105.82 : 18,086.74 = 7,516.82 : x
2. Step 2: Convert to fraction form
   13,105.82/18,086.74 = 7,516.82/x
3. Step 3: Cross multiply
   13,105.82x = 18,086.74 × 7,516.82
4. Step 4: Simplify right side
   13,105.82x = 135,954,659.74
5. Step 5: Solve for x
   x = 135,954,659.74/13,105.82
6. Step 6: Final answer
   x = 10,373.61