Finding the Fourth Proportional to 6,802.89, 10,211.63 and 3,515.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,802.89 : 10,211.63 = 3,515.10 : x
2. Step 2: Convert to fraction form
   6,802.89/10,211.63 = 3,515.10/x
3. Step 3: Cross multiply
   6,802.89x = 10,211.63 × 3,515.10
4. Step 4: Simplify right side
   6,802.89x = 35,894,883.04
5. Step 5: Solve for x
   x = 35,894,883.04/6,802.89
6. Step 6: Final answer
   x = 5,276.42