Finding the Fourth Proportional to 5,667.67, 8,485.84 and 4,276.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,667.67 : 8,485.84 = 4,276.72 : x
2. Step 2: Convert to fraction form
   5,667.67/8,485.84 = 4,276.72/x
3. Step 3: Cross multiply
   5,667.67x = 8,485.84 × 4,276.72
4. Step 4: Simplify right side
   5,667.67x = 36,291,561.64
5. Step 5: Solve for x
   x = 36,291,561.64/5,667.67
6. Step 6: Final answer
   x = 6,403.26