Finding the Fourth Proportional to 8,849.72, 12,213.18 and 5,071.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,849.72 : 12,213.18 = 5,071.88 : x
2. Step 2: Convert to fraction form
   8,849.72/12,213.18 = 5,071.88/x
3. Step 3: Cross multiply
   8,849.72x = 12,213.18 × 5,071.88
4. Step 4: Simplify right side
   8,849.72x = 61,943,813.91
5. Step 5: Solve for x
   x = 61,943,813.91/8,849.72
6. Step 6: Final answer
   x = 6,999.52