Finding the Fourth Proportional to 6,316.16, 8,716.30 and 3,665.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,316.16 : 8,716.30 = 3,665.10 : x
2. Step 2: Convert to fraction form
   6,316.16/8,716.30 = 3,665.10/x
3. Step 3: Cross multiply
   6,316.16x = 8,716.30 × 3,665.10
4. Step 4: Simplify right side
   6,316.16x = 31,946,111.13
5. Step 5: Solve for x
   x = 31,946,111.13/6,316.16
6. Step 6: Final answer
   x = 5,057.84