Finding the Fourth Proportional to 8,789.27, 13,185.67 and 3,242.64

Step by Step Solution

1. Step 1: Write the proportion equation
   8,789.27 : 13,185.67 = 3,242.64 : x
2. Step 2: Convert to fraction form
   8,789.27/13,185.67 = 3,242.64/x
3. Step 3: Cross multiply
   8,789.27x = 13,185.67 × 3,242.64
4. Step 4: Simplify right side
   8,789.27x = 42,756,428.39
5. Step 5: Solve for x
   x = 42,756,428.39/8,789.27
6. Step 6: Final answer
   x = 4,864.62