Finding the Fourth Proportional to 9,947.56, 13,727.52 and 5,755.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,947.56 : 13,727.52 = 5,755.72 : x
2. Step 2: Convert to fraction form
   9,947.56/13,727.52 = 5,755.72/x
3. Step 3: Cross multiply
   9,947.56x = 13,727.52 × 5,755.72
4. Step 4: Simplify right side
   9,947.56x = 79,011,761.41
5. Step 5: Solve for x
   x = 79,011,761.41/9,947.56
6. Step 6: Final answer
   x = 7,942.83