Finding the Fourth Proportional to 7,221.15, 10,826.06 and 2,841.89

Step by Step Solution

1. Step 1: Write the proportion equation
   7,221.15 : 10,826.06 = 2,841.89 : x
2. Step 2: Convert to fraction form
   7,221.15/10,826.06 = 2,841.89/x
3. Step 3: Cross multiply
   7,221.15x = 10,826.06 × 2,841.89
4. Step 4: Simplify right side
   7,221.15x = 30,766,403.31
5. Step 5: Solve for x
   x = 30,766,403.31/7,221.15
6. Step 6: Final answer
   x = 4,260.60