Finding the Fourth Proportional to 7,767.94, 10,719.72 and 4,231.18

Step by Step Solution

1. Step 1: Write the proportion equation
   7,767.94 : 10,719.72 = 4,231.18 : x
2. Step 2: Convert to fraction form
   7,767.94/10,719.72 = 4,231.18/x
3. Step 3: Cross multiply
   7,767.94x = 10,719.72 × 4,231.18
4. Step 4: Simplify right side
   7,767.94x = 45,357,064.87
5. Step 5: Solve for x
   x = 45,357,064.87/7,767.94
6. Step 6: Final answer
   x = 5,839.01