Finding the Fourth Proportional to 7,019.52, 10,513.92 and 4,961.28

Step by Step Solution

1. Step 1: Write the proportion equation
   7,019.52 : 10,513.92 = 4,961.28 : x
2. Step 2: Convert to fraction form
   7,019.52/10,513.92 = 4,961.28/x
3. Step 3: Cross multiply
   7,019.52x = 10,513.92 × 4,961.28
4. Step 4: Simplify right side
   7,019.52x = 52,162,501.02
5. Step 5: Solve for x
   x = 52,162,501.02/7,019.52
6. Step 6: Final answer
   x = 7,431.06