Finding the Fourth Proportional to 9,234.55, 12,743.49 and 5,042.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,234.55 : 12,743.49 = 5,042.80 : x
2. Step 2: Convert to fraction form
   9,234.55/12,743.49 = 5,042.80/x
3. Step 3: Cross multiply
   9,234.55x = 12,743.49 × 5,042.80
4. Step 4: Simplify right side
   9,234.55x = 64,262,871.37
5. Step 5: Solve for x
   x = 64,262,871.37/9,234.55
6. Step 6: Final answer
   x = 6,958.96