Finding the Fourth Proportional to 4,667.38, 6,440.99 and 2,571.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,667.38 : 6,440.99 = 2,571.50 : x
2. Step 2: Convert to fraction form
   4,667.38/6,440.99 = 2,571.50/x
3. Step 3: Cross multiply
   4,667.38x = 6,440.99 × 2,571.50
4. Step 4: Simplify right side
   4,667.38x = 16,563,009.03
5. Step 5: Solve for x
   x = 16,563,009.03/4,667.38
6. Step 6: Final answer
   x = 3,548.68