Finding the Fourth Proportional to 7,411.98, 10,226.81 and 4,428.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,411.98 : 10,226.81 = 4,428.78 : x
2. Step 2: Convert to fraction form
   7,411.98/10,226.81 = 4,428.78/x
3. Step 3: Cross multiply
   7,411.98x = 10,226.81 × 4,428.78
4. Step 4: Simplify right side
   7,411.98x = 45,292,291.59
5. Step 5: Solve for x
   x = 45,292,291.59/7,411.98
6. Step 6: Final answer
   x = 6,110.69