Finding the Fourth Proportional to 8,186.09, 12,268.86 and 3,500.59

Step by Step Solution

1. Step 1: Write the proportion equation
   8,186.09 : 12,268.86 = 3,500.59 : x
2. Step 2: Convert to fraction form
   8,186.09/12,268.86 = 3,500.59/x
3. Step 3: Cross multiply
   8,186.09x = 12,268.86 × 3,500.59
4. Step 4: Simplify right side
   8,186.09x = 42,948,274.62
5. Step 5: Solve for x
   x = 42,948,274.62/8,186.09
6. Step 6: Final answer
   x = 5,246.49