Finding the Fourth Proportional to 6,883.47, 9,499.39 and 3,899.73

Step by Step Solution

1. Step 1: Write the proportion equation
   6,883.47 : 9,499.39 = 3,899.73 : x
2. Step 2: Convert to fraction form
   6,883.47/9,499.39 = 3,899.73/x
3. Step 3: Cross multiply
   6,883.47x = 9,499.39 × 3,899.73
4. Step 4: Simplify right side
   6,883.47x = 37,045,056.16
5. Step 5: Solve for x
   x = 37,045,056.16/6,883.47
6. Step 6: Final answer
   x = 5,381.74