Finding the Fourth Proportional to 8,429.96, 12,641.25 and 4,480.27

Step by Step Solution

1. Step 1: Write the proportion equation
   8,429.96 : 12,641.25 = 4,480.27 : x
2. Step 2: Convert to fraction form
   8,429.96/12,641.25 = 4,480.27/x
3. Step 3: Cross multiply
   8,429.96x = 12,641.25 × 4,480.27
4. Step 4: Simplify right side
   8,429.96x = 56,636,213.14
5. Step 5: Solve for x
   x = 56,636,213.14/8,429.96
6. Step 6: Final answer
   x = 6,718.44