Finding the Fourth Proportional to 7,042.96, 9,719.60 and 3,856.48

Step by Step Solution

1. Step 1: Write the proportion equation
   7,042.96 : 9,719.60 = 3,856.48 : x
2. Step 2: Convert to fraction form
   7,042.96/9,719.60 = 3,856.48/x
3. Step 3: Cross multiply
   7,042.96x = 9,719.60 × 3,856.48
4. Step 4: Simplify right side
   7,042.96x = 37,483,443.01
5. Step 5: Solve for x
   x = 37,483,443.01/7,042.96
6. Step 6: Final answer
   x = 5,322.11