Finding the Fourth Proportional to 6,301.71, 8,696.43 and 3,507.21

Step by Step Solution

1. Step 1: Write the proportion equation
   6,301.71 : 8,696.43 = 3,507.21 : x
2. Step 2: Convert to fraction form
   6,301.71/8,696.43 = 3,507.21/x
3. Step 3: Cross multiply
   6,301.71x = 8,696.43 × 3,507.21
4. Step 4: Simplify right side
   6,301.71x = 30,500,206.26
5. Step 5: Solve for x
   x = 30,500,206.26/6,301.71
6. Step 6: Final answer
   x = 4,839.99