Finding the Fourth Proportional to 6,883.92, 9,499.78 and 3,899.46

Step by Step Solution

1. Step 1: Write the proportion equation
   6,883.92 : 9,499.78 = 3,899.46 : x
2. Step 2: Convert to fraction form
   6,883.92/9,499.78 = 3,899.46/x
3. Step 3: Cross multiply
   6,883.92x = 9,499.78 × 3,899.46
4. Step 4: Simplify right side
   6,883.92x = 37,044,012.12
5. Step 5: Solve for x
   x = 37,044,012.12/6,883.92
6. Step 6: Final answer
   x = 5,381.24