Finding the Fourth Proportional to 5,791.10, 7,989.56 and 3,802.76

Step by Step Solution

1. Step 1: Write the proportion equation
   5,791.10 : 7,989.56 = 3,802.76 : x
2. Step 2: Convert to fraction form
   5,791.10/7,989.56 = 3,802.76/x
3. Step 3: Cross multiply
   5,791.10x = 7,989.56 × 3,802.76
4. Step 4: Simplify right side
   5,791.10x = 30,382,379.19
5. Step 5: Solve for x
   x = 30,382,379.19/5,791.10
6. Step 6: Final answer
   x = 5,246.39