Finding the Fourth Proportional to 6,884.60, 9,499.82 and 3,900.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,884.60 : 9,499.82 = 3,900.69 : x
2. Step 2: Convert to fraction form
   6,884.60/9,499.82 = 3,900.69/x
3. Step 3: Cross multiply
   6,884.60x = 9,499.82 × 3,900.69
4. Step 4: Simplify right side
   6,884.60x = 37,055,833.37
5. Step 5: Solve for x
   x = 37,055,833.37/6,884.60
6. Step 6: Final answer
   x = 5,382.43