Finding the Fourth Proportional to 6,884.15, 9,500.25 and 3,899.91

Step by Step Solution

1. Step 1: Write the proportion equation
   6,884.15 : 9,500.25 = 3,899.91 : x
2. Step 2: Convert to fraction form
   6,884.15/9,500.25 = 3,899.91/x
3. Step 3: Cross multiply
   6,884.15x = 9,500.25 × 3,899.91
4. Step 4: Simplify right side
   6,884.15x = 37,050,100.48
5. Step 5: Solve for x
   x = 37,050,100.48/6,884.15
6. Step 6: Final answer
   x = 5,381.94