Finding the Fourth Proportional to 6,293.75, 8,685.39 and 3,499.79

Step by Step Solution

1. Step 1: Write the proportion equation
   6,293.75 : 8,685.39 = 3,499.79 : x
2. Step 2: Convert to fraction form
   6,293.75/8,685.39 = 3,499.79/x
3. Step 3: Cross multiply
   6,293.75x = 8,685.39 × 3,499.79
4. Step 4: Simplify right side
   6,293.75x = 30,397,041.07
5. Step 5: Solve for x
   x = 30,397,041.07/6,293.75
6. Step 6: Final answer
   x = 4,829.72