Finding the Fourth Proportional to 7,661.34, 11,472.48 and 7,019.82

Step by Step Solution

1. Step 1: Write the proportion equation
   7,661.34 : 11,472.48 = 7,019.82 : x
2. Step 2: Convert to fraction form
   7,661.34/11,472.48 = 7,019.82/x
3. Step 3: Cross multiply
   7,661.34x = 11,472.48 × 7,019.82
4. Step 4: Simplify right side
   7,661.34x = 80,534,744.55
5. Step 5: Solve for x
   x = 80,534,744.55/7,661.34
6. Step 6: Final answer
   x = 10,511.84