Finding the Fourth Proportional to 8,667.84, 13,004.78 and 2,745.64

Step by Step Solution

1. Step 1: Write the proportion equation
   8,667.84 : 13,004.78 = 2,745.64 : x
2. Step 2: Convert to fraction form
   8,667.84/13,004.78 = 2,745.64/x
3. Step 3: Cross multiply
   8,667.84x = 13,004.78 × 2,745.64
4. Step 4: Simplify right side
   8,667.84x = 35,706,444.16
5. Step 5: Solve for x
   x = 35,706,444.16/8,667.84
6. Step 6: Final answer
   x = 4,119.42