Finding the Fourth Proportional to 9,309.34, 12,847.67 and 5,118.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,309.34 : 12,847.67 = 5,118.38 : x
2. Step 2: Convert to fraction form
   9,309.34/12,847.67 = 5,118.38/x
3. Step 3: Cross multiply
   9,309.34x = 12,847.67 × 5,118.38
4. Step 4: Simplify right side
   9,309.34x = 65,759,257.17
5. Step 5: Solve for x
   x = 65,759,257.17/9,309.34
6. Step 6: Final answer
   x = 7,063.79