Finding the Fourth Proportional to 7,443.75, 10,272.38 and 4,131.75

Step by Step Solution

1. Step 1: Write the proportion equation
   7,443.75 : 10,272.38 = 4,131.75 : x
2. Step 2: Convert to fraction form
   7,443.75/10,272.38 = 4,131.75/x
3. Step 3: Cross multiply
   7,443.75x = 10,272.38 × 4,131.75
4. Step 4: Simplify right side
   7,443.75x = 42,442,885.41
5. Step 5: Solve for x
   x = 42,442,885.41/7,443.75
6. Step 6: Final answer
   x = 5,701.82