Finding the Fourth Proportional to 7,270.05, 10,031.46 and 4,285.47

Step by Step Solution

1. Step 1: Write the proportion equation
   7,270.05 : 10,031.46 = 4,285.47 : x
2. Step 2: Convert to fraction form
   7,270.05/10,031.46 = 4,285.47/x
3. Step 3: Cross multiply
   7,270.05x = 10,031.46 × 4,285.47
4. Step 4: Simplify right side
   7,270.05x = 42,989,520.89
5. Step 5: Solve for x
   x = 42,989,520.89/7,270.05
6. Step 6: Final answer
   x = 5,913.24