Finding the Fourth Proportional to 9,306.56, 12,842.89 and 5,114.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,306.56 : 12,842.89 = 5,114.72 : x
2. Step 2: Convert to fraction form
   9,306.56/12,842.89 = 5,114.72/x
3. Step 3: Cross multiply
   9,306.56x = 12,842.89 × 5,114.72
4. Step 4: Simplify right side
   9,306.56x = 65,687,786.34
5. Step 5: Solve for x
   x = 65,687,786.34/9,306.56
6. Step 6: Final answer
   x = 7,058.22