Finding the Fourth Proportional to 5,323.82, 7,978.71 and 4,087.22

Step by Step Solution

1. Step 1: Write the proportion equation
   5,323.82 : 7,978.71 = 4,087.22 : x
2. Step 2: Convert to fraction form
   5,323.82/7,978.71 = 4,087.22/x
3. Step 3: Cross multiply
   5,323.82x = 7,978.71 × 4,087.22
4. Step 4: Simplify right side
   5,323.82x = 32,610,743.09
5. Step 5: Solve for x
   x = 32,610,743.09/5,323.82
6. Step 6: Final answer
   x = 6,125.44