Finding the Fourth Proportional to 7,061.70, 9,745.28 and 3,875.15

Step by Step Solution

1. Step 1: Write the proportion equation
   7,061.70 : 9,745.28 = 3,875.15 : x
2. Step 2: Convert to fraction form
   7,061.70/9,745.28 = 3,875.15/x
3. Step 3: Cross multiply
   7,061.70x = 9,745.28 × 3,875.15
4. Step 4: Simplify right side
   7,061.70x = 37,764,421.79
5. Step 5: Solve for x
   x = 37,764,421.79/7,061.70
6. Step 6: Final answer
   x = 5,347.78