Finding the Fourth Proportional to 9,219.03, 12,718.64 and 5,676.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,219.03 : 12,718.64 = 5,676.09 : x
2. Step 2: Convert to fraction form
   9,219.03/12,718.64 = 5,676.09/x
3. Step 3: Cross multiply
   9,219.03x = 12,718.64 × 5,676.09
4. Step 4: Simplify right side
   9,219.03x = 72,192,116.94
5. Step 5: Solve for x
   x = 72,192,116.94/9,219.03
6. Step 6: Final answer
   x = 7,830.77