Finding the Fourth Proportional to 6,761.78, 10,139.91 and 2,810.34

Step by Step Solution

1. Step 1: Write the proportion equation
   6,761.78 : 10,139.91 = 2,810.34 : x
2. Step 2: Convert to fraction form
   6,761.78/10,139.91 = 2,810.34/x
3. Step 3: Cross multiply
   6,761.78x = 10,139.91 × 2,810.34
4. Step 4: Simplify right side
   6,761.78x = 28,496,594.67
5. Step 5: Solve for x
   x = 28,496,594.67/6,761.78
6. Step 6: Final answer
   x = 4,214.37