Finding the Fourth Proportional to 8,426.38, 12,641.42 and 2,583.45

Step by Step Solution

1. Step 1: Write the proportion equation
   8,426.38 : 12,641.42 = 2,583.45 : x
2. Step 2: Convert to fraction form
   8,426.38/12,641.42 = 2,583.45/x
3. Step 3: Cross multiply
   8,426.38x = 12,641.42 × 2,583.45
4. Step 4: Simplify right side
   8,426.38x = 32,658,476.50
5. Step 5: Solve for x
   x = 32,658,476.50/8,426.38
6. Step 6: Final answer
   x = 3,875.74