Finding the Fourth Proportional to 7,274.72, 10,040.28 and 4,131.92

Step by Step Solution

1. Step 1: Write the proportion equation
   7,274.72 : 10,040.28 = 4,131.92 : x
2. Step 2: Convert to fraction form
   7,274.72/10,040.28 = 4,131.92/x
3. Step 3: Cross multiply
   7,274.72x = 10,040.28 × 4,131.92
4. Step 4: Simplify right side
   7,274.72x = 41,485,633.74
5. Step 5: Solve for x
   x = 41,485,633.74/7,274.72
6. Step 6: Final answer
   x = 5,702.71