Finding the Fourth Proportional to 6,767, 10,151.78 and 3,119

Step by Step Solution

1. Step 1: Write the proportion equation
   6,767 : 10,151.78 = 3,119 : x
2. Step 2: Convert to fraction form
   6,767/10,151.78 = 3,119/x
3. Step 3: Cross multiply
   6,767x = 10,151.78 × 3,119
4. Step 4: Simplify right side
   6,767x = 31,663,401.82
5. Step 5: Solve for x
   x = 31,663,401.82/6,767
6. Step 6: Final answer
   x = 4,679.09