Finding the Fourth Proportional to 6,921.54, 10,372.59 and 3,995.82

Step by Step Solution

1. Step 1: Write the proportion equation
   6,921.54 : 10,372.59 = 3,995.82 : x
2. Step 2: Convert to fraction form
   6,921.54/10,372.59 = 3,995.82/x
3. Step 3: Cross multiply
   6,921.54x = 10,372.59 × 3,995.82
4. Step 4: Simplify right side
   6,921.54x = 41,447,002.57
5. Step 5: Solve for x
   x = 41,447,002.57/6,921.54
6. Step 6: Final answer
   x = 5,988.12