Finding the Fourth Proportional to 6,885.26, 10,334.72 and 3,188.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,885.26 : 10,334.72 = 3,188.31 : x
2. Step 2: Convert to fraction form
   6,885.26/10,334.72 = 3,188.31/x
3. Step 3: Cross multiply
   6,885.26x = 10,334.72 × 3,188.31
4. Step 4: Simplify right side
   6,885.26x = 32,950,291.12
5. Step 5: Solve for x
   x = 32,950,291.12/6,885.26
6. Step 6: Final answer
   x = 4,785.63