Finding the Fourth Proportional to 6,886.27, 10,327.56 and 2,989.75

Step by Step Solution

1. Step 1: Write the proportion equation
   6,886.27 : 10,327.56 = 2,989.75 : x
2. Step 2: Convert to fraction form
   6,886.27/10,327.56 = 2,989.75/x
3. Step 3: Cross multiply
   6,886.27x = 10,327.56 × 2,989.75
4. Step 4: Simplify right side
   6,886.27x = 30,876,822.51
5. Step 5: Solve for x
   x = 30,876,822.51/6,886.27
6. Step 6: Final answer
   x = 4,483.82