Finding the Fourth Proportional to 6,887.66, 10,327.61 and 3,185.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,887.66 : 10,327.61 = 3,185.31 : x
2. Step 2: Convert to fraction form
   6,887.66/10,327.61 = 3,185.31/x
3. Step 3: Cross multiply
   6,887.66x = 10,327.61 × 3,185.31
4. Step 4: Simplify right side
   6,887.66x = 32,896,647.37
5. Step 5: Solve for x
   x = 32,896,647.37/6,887.66
6. Step 6: Final answer
   x = 4,776.17