Finding the Fourth Proportional to 7,280.56, 10,046.47 and 4,256.39

Step by Step Solution

1. Step 1: Write the proportion equation
   7,280.56 : 10,046.47 = 4,256.39 : x
2. Step 2: Convert to fraction form
   7,280.56/10,046.47 = 4,256.39/x
3. Step 3: Cross multiply
   7,280.56x = 10,046.47 × 4,256.39
4. Step 4: Simplify right side
   7,280.56x = 42,761,644.21
5. Step 5: Solve for x
   x = 42,761,644.21/7,280.56
6. Step 6: Final answer
   x = 5,873.40