Finding the Fourth Proportional to 6,139.10, 9,212.69 and 3,367.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,139.10 : 9,212.69 = 3,367.72 : x
2. Step 2: Convert to fraction form
   6,139.10/9,212.69 = 3,367.72/x
3. Step 3: Cross multiply
   6,139.10x = 9,212.69 × 3,367.72
4. Step 4: Simplify right side
   6,139.10x = 31,025,767.67
5. Step 5: Solve for x
   x = 31,025,767.67/6,139.10
6. Step 6: Final answer
   x = 5,053.80