Finding the Fourth Proportional to 9,947.56, 13,726.12 and 5,755

Step by Step Solution

1. Step 1: Write the proportion equation
   9,947.56 : 13,726.12 = 5,755 : x
2. Step 2: Convert to fraction form
   9,947.56/13,726.12 = 5,755/x
3. Step 3: Cross multiply
   9,947.56x = 13,726.12 × 5,755
4. Step 4: Simplify right side
   9,947.56x = 78,993,820.60
5. Step 5: Solve for x
   x = 78,993,820.60/9,947.56
6. Step 6: Final answer
   x = 7,941.02