Finding the Fourth Proportional to 9,993.87, 13,791.37 and 5,517.51

Step by Step Solution

1. Step 1: Write the proportion equation
   9,993.87 : 13,791.37 = 5,517.51 : x
2. Step 2: Convert to fraction form
   9,993.87/13,791.37 = 5,517.51/x
3. Step 3: Cross multiply
   9,993.87x = 13,791.37 × 5,517.51
4. Step 4: Simplify right side
   9,993.87x = 76,094,021.89
5. Step 5: Solve for x
   x = 76,094,021.89/9,993.87
6. Step 6: Final answer
   x = 7,614.07