Finding the Fourth Proportional to 7,960.20, 10,977.74 and 5,411.79

Step by Step Solution

1. Step 1: Write the proportion equation
   7,960.20 : 10,977.74 = 5,411.79 : x
2. Step 2: Convert to fraction form
   7,960.20/10,977.74 = 5,411.79/x
3. Step 3: Cross multiply
   7,960.20x = 10,977.74 × 5,411.79
4. Step 4: Simplify right side
   7,960.20x = 59,409,196.50
5. Step 5: Solve for x
   x = 59,409,196.50/7,960.20
6. Step 6: Final answer
   x = 7,463.28