Finding the Fourth Proportional to 8,365.82, 12,549.89 and 2,820.75

Step by Step Solution

1. Step 1: Write the proportion equation
   8,365.82 : 12,549.89 = 2,820.75 : x
2. Step 2: Convert to fraction form
   8,365.82/12,549.89 = 2,820.75/x
3. Step 3: Cross multiply
   8,365.82x = 12,549.89 × 2,820.75
4. Step 4: Simplify right side
   8,365.82x = 35,400,133.59
5. Step 5: Solve for x
   x = 35,400,133.59/8,365.82
6. Step 6: Final answer
   x = 4,231.52