Finding the Fourth Proportional to 5,651.82, 7,800.45 and 3,881.97

Step by Step Solution

1. Step 1: Write the proportion equation
   5,651.82 : 7,800.45 = 3,881.97 : x
2. Step 2: Convert to fraction form
   5,651.82/7,800.45 = 3,881.97/x
3. Step 3: Cross multiply
   5,651.82x = 7,800.45 × 3,881.97
4. Step 4: Simplify right side
   5,651.82x = 30,281,112.89
5. Step 5: Solve for x
   x = 30,281,112.89/5,651.82
6. Step 6: Final answer
   x = 5,357.76