Finding the Fourth Proportional to 5,546.56, 7,643.73 and 3,971.92

Step by Step Solution

1. Step 1: Write the proportion equation
   5,546.56 : 7,643.73 = 3,971.92 : x
2. Step 2: Convert to fraction form
   5,546.56/7,643.73 = 3,971.92/x
3. Step 3: Cross multiply
   5,546.56x = 7,643.73 × 3,971.92
4. Step 4: Simplify right side
   5,546.56x = 30,360,284.06
5. Step 5: Solve for x
   x = 30,360,284.06/5,546.56
6. Step 6: Final answer
   x = 5,473.71