Finding the Fourth Proportional to 6,804.71, 9,389.31 and 3,820.67

Step by Step Solution

1. Step 1: Write the proportion equation
   6,804.71 : 9,389.31 = 3,820.67 : x
2. Step 2: Convert to fraction form
   6,804.71/9,389.31 = 3,820.67/x
3. Step 3: Cross multiply
   6,804.71x = 9,389.31 × 3,820.67
4. Step 4: Simplify right side
   6,804.71x = 35,873,455.04
5. Step 5: Solve for x
   x = 35,873,455.04/6,804.71
6. Step 6: Final answer
   x = 5,271.86