Finding the Fourth Proportional to 5,861.39, 8,786.00 and 3,665.07

Step by Step Solution

1. Step 1: Write the proportion equation
   5,861.39 : 8,786.00 = 3,665.07 : x
2. Step 2: Convert to fraction form
   5,861.39/8,786.00 = 3,665.07/x
3. Step 3: Cross multiply
   5,861.39x = 8,786.00 × 3,665.07
4. Step 4: Simplify right side
   5,861.39x = 32,201,314.18
5. Step 5: Solve for x
   x = 32,201,314.18/5,861.39
6. Step 6: Final answer
   x = 5,493.81