Finding the Fourth Proportional to 7,977.52, 11,968.41 and 7,105.99

Step by Step Solution

1. Step 1: Write the proportion equation
   7,977.52 : 11,968.41 = 7,105.99 : x
2. Step 2: Convert to fraction form
   7,977.52/11,968.41 = 7,105.99/x
3. Step 3: Cross multiply
   7,977.52x = 11,968.41 × 7,105.99
4. Step 4: Simplify right side
   7,977.52x = 85,047,401.78
5. Step 5: Solve for x
   x = 85,047,401.78/7,977.52
6. Step 6: Final answer
   x = 10,660.88