Finding the Fourth Proportional to 9,309.56, 12,847.98 and 5,118.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,309.56 : 12,847.98 = 5,118.56 : x
2. Step 2: Convert to fraction form
   9,309.56/12,847.98 = 5,118.56/x
3. Step 3: Cross multiply
   9,309.56x = 12,847.98 × 5,118.56
4. Step 4: Simplify right side
   9,309.56x = 65,763,156.51
5. Step 5: Solve for x
   x = 65,763,156.51/9,309.56
6. Step 6: Final answer
   x = 7,064.05