Finding the Fourth Proportional to 9,309.79, 12,847.18 and 5,118.01

Step by Step Solution

1. Step 1: Write the proportion equation
   9,309.79 : 12,847.18 = 5,118.01 : x
2. Step 2: Convert to fraction form
   9,309.79/12,847.18 = 5,118.01/x
3. Step 3: Cross multiply
   9,309.79x = 12,847.18 × 5,118.01
4. Step 4: Simplify right side
   9,309.79x = 65,751,995.71
5. Step 5: Solve for x
   x = 65,751,995.71/9,309.79
6. Step 6: Final answer
   x = 7,062.67