Finding the Fourth Proportional to 8,729.91, 12,043.89 and 5,747.22

Step by Step Solution

1. Step 1: Write the proportion equation
   8,729.91 : 12,043.89 = 5,747.22 : x
2. Step 2: Convert to fraction form
   8,729.91/12,043.89 = 5,747.22/x
3. Step 3: Cross multiply
   8,729.91x = 12,043.89 × 5,747.22
4. Step 4: Simplify right side
   8,729.91x = 69,218,885.49
5. Step 5: Solve for x
   x = 69,218,885.49/8,729.91
6. Step 6: Final answer
   x = 7,928.93