Finding the Fourth Proportional to 8,849.16, 12,211.88 and 5,072.55

Step by Step Solution

1. Step 1: Write the proportion equation
   8,849.16 : 12,211.88 = 5,072.55 : x
2. Step 2: Convert to fraction form
   8,849.16/12,211.88 = 5,072.55/x
3. Step 3: Cross multiply
   8,849.16x = 12,211.88 × 5,072.55
4. Step 4: Simplify right side
   8,849.16x = 61,945,371.89
5. Step 5: Solve for x
   x = 61,945,371.89/8,849.16
6. Step 6: Final answer
   x = 7,000.14