Finding the Fourth Proportional to 7,061.40, 9,745.04 and 4,077.28

Step by Step Solution

1. Step 1: Write the proportion equation
   7,061.40 : 9,745.04 = 4,077.28 : x
2. Step 2: Convert to fraction form
   7,061.40/9,745.04 = 4,077.28/x
3. Step 3: Cross multiply
   7,061.40x = 9,745.04 × 4,077.28
4. Step 4: Simplify right side
   7,061.40x = 39,733,256.69
5. Step 5: Solve for x
   x = 39,733,256.69/7,061.40
6. Step 6: Final answer
   x = 5,626.82