Finding the Fourth Proportional to 9,940.38, 13,716.24 and 5,690.77

Step by Step Solution

1. Step 1: Write the proportion equation
   9,940.38 : 13,716.24 = 5,690.77 : x
2. Step 2: Convert to fraction form
   9,940.38/13,716.24 = 5,690.77/x
3. Step 3: Cross multiply
   9,940.38x = 13,716.24 × 5,690.77
4. Step 4: Simplify right side
   9,940.38x = 78,055,870.07
5. Step 5: Solve for x
   x = 78,055,870.07/9,940.38
6. Step 6: Final answer
   x = 7,852.41