Finding the Fourth Proportional to 3,911.51, 5,836.83 and 3,817.68

Step by Step Solution

1. Step 1: Write the proportion equation
   3,911.51 : 5,836.83 = 3,817.68 : x
2. Step 2: Convert to fraction form
   3,911.51/5,836.83 = 3,817.68/x
3. Step 3: Cross multiply
   3,911.51x = 5,836.83 × 3,817.68
4. Step 4: Simplify right side
   3,911.51x = 22,283,149.15
5. Step 5: Solve for x
   x = 22,283,149.15/3,911.51
6. Step 6: Final answer
   x = 5,696.82