Finding the Fourth Proportional to 8,139.68, 12,214.52 and 3,757.46

Step by Step Solution

1. Step 1: Write the proportion equation
   8,139.68 : 12,214.52 = 3,757.46 : x
2. Step 2: Convert to fraction form
   8,139.68/12,214.52 = 3,757.46/x
3. Step 3: Cross multiply
   8,139.68x = 12,214.52 × 3,757.46
4. Step 4: Simplify right side
   8,139.68x = 45,895,570.32
5. Step 5: Solve for x
   x = 45,895,570.32/8,139.68
6. Step 6: Final answer
   x = 5,638.50