Finding the Fourth Proportional to 9,994.78, 13,793.24 and 5,747.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,994.78 : 13,793.24 = 5,747.22 : x
2. Step 2: Convert to fraction form
   9,994.78/13,793.24 = 5,747.22/x
3. Step 3: Cross multiply
   9,994.78x = 13,793.24 × 5,747.22
4. Step 4: Simplify right side
   9,994.78x = 79,272,799.16
5. Step 5: Solve for x
   x = 79,272,799.16/9,994.78
6. Step 6: Final answer
   x = 7,931.42