Finding the Fourth Proportional to 9,992.16, 13,786.66 and 5,744.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,992.16 : 13,786.66 = 5,744.42 : x
2. Step 2: Convert to fraction form
   9,992.16/13,786.66 = 5,744.42/x
3. Step 3: Cross multiply
   9,992.16x = 13,786.66 × 5,744.42
4. Step 4: Simplify right side
   9,992.16x = 79,196,323.07
5. Step 5: Solve for x
   x = 79,196,323.07/9,992.16
6. Step 6: Final answer
   x = 7,925.85