Finding the Fourth Proportional to 9,993.31, 13,792.78 and 5,747.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,993.31 : 13,792.78 = 5,747.34 : x
2. Step 2: Convert to fraction form
   9,993.31/13,792.78 = 5,747.34/x
3. Step 3: Cross multiply
   9,993.31x = 13,792.78 × 5,747.34
4. Step 4: Simplify right side
   9,993.31x = 79,271,796.21
5. Step 5: Solve for x
   x = 79,271,796.21/9,993.31
6. Step 6: Final answer
   x = 7,932.49