Finding the Fourth Proportional to 9,959.37, 13,740.89 and 5,766.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,959.37 : 13,740.89 = 5,766.81 : x
2. Step 2: Convert to fraction form
   9,959.37/13,740.89 = 5,766.81/x
3. Step 3: Cross multiply
   9,959.37x = 13,740.89 × 5,766.81
4. Step 4: Simplify right side
   9,959.37x = 79,241,073.03
5. Step 5: Solve for x
   x = 79,241,073.03/9,959.37
6. Step 6: Final answer
   x = 7,956.43