Finding the Fourth Proportional to 7,298.40, 10,960.56 and 5,111.40

Step by Step Solution

1. Step 1: Write the proportion equation
   7,298.40 : 10,960.56 = 5,111.40 : x
2. Step 2: Convert to fraction form
   7,298.40/10,960.56 = 5,111.40/x
3. Step 3: Cross multiply
   7,298.40x = 10,960.56 × 5,111.40
4. Step 4: Simplify right side
   7,298.40x = 56,023,806.38
5. Step 5: Solve for x
   x = 56,023,806.38/7,298.40
6. Step 6: Final answer
   x = 7,676.18