Finding the Fourth Proportional to 6,485.05, 9,727.78 and 2,536.15

Step by Step Solution

1. Step 1: Write the proportion equation
   6,485.05 : 9,727.78 = 2,536.15 : x
2. Step 2: Convert to fraction form
   6,485.05/9,727.78 = 2,536.15/x
3. Step 3: Cross multiply
   6,485.05x = 9,727.78 × 2,536.15
4. Step 4: Simplify right side
   6,485.05x = 24,671,109.25
5. Step 5: Solve for x
   x = 24,671,109.25/6,485.05
6. Step 6: Final answer
   x = 3,804.31