Finding the Fourth Proportional to 9,791.75, 13,513.43 and 5,600.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,791.75 : 13,513.43 = 5,600.81 : x
2. Step 2: Convert to fraction form
   9,791.75/13,513.43 = 5,600.81/x
3. Step 3: Cross multiply
   9,791.75x = 13,513.43 × 5,600.81
4. Step 4: Simplify right side
   9,791.75x = 75,686,153.88
5. Step 5: Solve for x
   x = 75,686,153.88/9,791.75
6. Step 6: Final answer
   x = 7,729.58