Finding the Fourth Proportional to 12,871.34, 19,310.34 and 3,637.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,871.34 : 19,310.34 = 3,637.34 : x
2. Step 2: Convert to fraction form
   12,871.34/19,310.34 = 3,637.34/x
3. Step 3: Cross multiply
   12,871.34x = 19,310.34 × 3,637.34
4. Step 4: Simplify right side
   12,871.34x = 70,238,272.10
5. Step 5: Solve for x
   x = 70,238,272.10/12,871.34
6. Step 6: Final answer
   x = 5,456.95