Finding the Fourth Proportional to 6,319.50, 8,722.64 and 3,667.75

Step by Step Solution

1. Step 1: Write the proportion equation
   6,319.50 : 8,722.64 = 3,667.75 : x
2. Step 2: Convert to fraction form
   6,319.50/8,722.64 = 3,667.75/x
3. Step 3: Cross multiply
   6,319.50x = 8,722.64 × 3,667.75
4. Step 4: Simplify right side
   6,319.50x = 31,992,462.86
5. Step 5: Solve for x
   x = 31,992,462.86/6,319.50
6. Step 6: Final answer
   x = 5,062.50