Finding the Fourth Proportional to 8,479.22, 12,714.72 and 2,930.61

Step by Step Solution

1. Step 1: Write the proportion equation
   8,479.22 : 12,714.72 = 2,930.61 : x
2. Step 2: Convert to fraction form
   8,479.22/12,714.72 = 2,930.61/x
3. Step 3: Cross multiply
   8,479.22x = 12,714.72 × 2,930.61
4. Step 4: Simplify right side
   8,479.22x = 37,261,922.27
5. Step 5: Solve for x
   x = 37,261,922.27/8,479.22
6. Step 6: Final answer
   x = 4,394.50