Finding the Fourth Proportional to 9,948.16, 13,729.80 and 5,756.68

Step by Step Solution

1. Step 1: Write the proportion equation
   9,948.16 : 13,729.80 = 5,756.68 : x
2. Step 2: Convert to fraction form
   9,948.16/13,729.80 = 5,756.68/x
3. Step 3: Cross multiply
   9,948.16x = 13,729.80 × 5,756.68
4. Step 4: Simplify right side
   9,948.16x = 79,038,065.06
5. Step 5: Solve for x
   x = 79,038,065.06/9,948.16
6. Step 6: Final answer
   x = 7,944.99