Finding the Fourth Proportional to 9,968.39, 13,755.95 and 5,716.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,968.39 : 13,755.95 = 5,716.49 : x
2. Step 2: Convert to fraction form
   9,968.39/13,755.95 = 5,716.49/x
3. Step 3: Cross multiply
   9,968.39x = 13,755.95 × 5,716.49
4. Step 4: Simplify right side
   9,968.39x = 78,635,777.86
5. Step 5: Solve for x
   x = 78,635,777.86/9,968.39
6. Step 6: Final answer
   x = 7,888.52