Finding the Fourth Proportional to 8,002.05, 11,992.15 and 5,075.11

Step by Step Solution

1. Step 1: Write the proportion equation
   8,002.05 : 11,992.15 = 5,075.11 : x
2. Step 2: Convert to fraction form
   8,002.05/11,992.15 = 5,075.11/x
3. Step 3: Cross multiply
   8,002.05x = 11,992.15 × 5,075.11
4. Step 4: Simplify right side
   8,002.05x = 60,861,480.39
5. Step 5: Solve for x
   x = 60,861,480.39/8,002.05
6. Step 6: Final answer
   x = 7,605.74