Finding the Fourth Proportional to 7,443.09, 10,271.76 and 4,256.90

Step by Step Solution

1. Step 1: Write the proportion equation
   7,443.09 : 10,271.76 = 4,256.90 : x
2. Step 2: Convert to fraction form
   7,443.09/10,271.76 = 4,256.90/x
3. Step 3: Cross multiply
   7,443.09x = 10,271.76 × 4,256.90
4. Step 4: Simplify right side
   7,443.09x = 43,725,855.14
5. Step 5: Solve for x
   x = 43,725,855.14/7,443.09
6. Step 6: Final answer
   x = 5,874.69