Finding the Fourth Proportional to 9,949.06, 13,728.18 and 5,756.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,949.06 : 13,728.18 = 5,756.50 : x
2. Step 2: Convert to fraction form
   9,949.06/13,728.18 = 5,756.50/x
3. Step 3: Cross multiply
   9,949.06x = 13,728.18 × 5,756.50
4. Step 4: Simplify right side
   9,949.06x = 79,026,268.17
5. Step 5: Solve for x
   x = 79,026,268.17/9,949.06
6. Step 6: Final answer
   x = 7,943.09