Finding the Fourth Proportional to 7,036.35, 10,553.31 and 4,280.73

Step by Step Solution

1. Step 1: Write the proportion equation
   7,036.35 : 10,553.31 = 4,280.73 : x
2. Step 2: Convert to fraction form
   7,036.35/10,553.31 = 4,280.73/x
3. Step 3: Cross multiply
   7,036.35x = 10,553.31 × 4,280.73
4. Step 4: Simplify right side
   7,036.35x = 45,175,870.72
5. Step 5: Solve for x
   x = 45,175,870.72/7,036.35
6. Step 6: Final answer
   x = 6,420.36