Finding the Fourth Proportional to 7,078.95, 10,659.57 and 5,243.09

Step by Step Solution

1. Step 1: Write the proportion equation
   7,078.95 : 10,659.57 = 5,243.09 : x
2. Step 2: Convert to fraction form
   7,078.95/10,659.57 = 5,243.09/x
3. Step 3: Cross multiply
   7,078.95x = 10,659.57 × 5,243.09
4. Step 4: Simplify right side
   7,078.95x = 55,889,031.57
5. Step 5: Solve for x
   x = 55,889,031.57/7,078.95
6. Step 6: Final answer
   x = 7,895.10