Finding the Fourth Proportional to 8,764.15, 12,082 and 5,404.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,764.15 : 12,082 = 5,404.72 : x
2. Step 2: Convert to fraction form
   8,764.15/12,082 = 5,404.72/x
3. Step 3: Cross multiply
   8,764.15x = 12,082 × 5,404.72
4. Step 4: Simplify right side
   8,764.15x = 65,299,827.04
5. Step 5: Solve for x
   x = 65,299,827.04/8,764.15
6. Step 6: Final answer
   x = 7,450.79