Finding the Fourth Proportional to 7,255.89, 10,013.31 and 4,112.28

Step by Step Solution

1. Step 1: Write the proportion equation
   7,255.89 : 10,013.31 = 4,112.28 : x
2. Step 2: Convert to fraction form
   7,255.89/10,013.31 = 4,112.28/x
3. Step 3: Cross multiply
   7,255.89x = 10,013.31 × 4,112.28
4. Step 4: Simplify right side
   7,255.89x = 41,177,534.45
5. Step 5: Solve for x
   x = 41,177,534.45/7,255.89
6. Step 6: Final answer
   x = 5,675.05