Finding the Fourth Proportional to 9,943.56, 13,720.59 and 5,751

Step by Step Solution

1. Step 1: Write the proportion equation
   9,943.56 : 13,720.59 = 5,751 : x
2. Step 2: Convert to fraction form
   9,943.56/13,720.59 = 5,751/x
3. Step 3: Cross multiply
   9,943.56x = 13,720.59 × 5,751
4. Step 4: Simplify right side
   9,943.56x = 78,907,113.09
5. Step 5: Solve for x
   x = 78,907,113.09/9,943.56
6. Step 6: Final answer
   x = 7,935.50