Finding the Fourth Proportional to 8,808.72, 12,156.12 and 5,082

Step by Step Solution

1. Step 1: Write the proportion equation
   8,808.72 : 12,156.12 = 5,082 : x
2. Step 2: Convert to fraction form
   8,808.72/12,156.12 = 5,082/x
3. Step 3: Cross multiply
   8,808.72x = 12,156.12 × 5,082
4. Step 4: Simplify right side
   8,808.72x = 61,777,401.84
5. Step 5: Solve for x
   x = 61,777,401.84/8,808.72
6. Step 6: Final answer
   x = 7,013.21