Finding the Fourth Proportional to 8,139.35, 12,209.01 and 2,944.01

Step by Step Solution

1. Step 1: Write the proportion equation
   8,139.35 : 12,209.01 = 2,944.01 : x
2. Step 2: Convert to fraction form
   8,139.35/12,209.01 = 2,944.01/x
3. Step 3: Cross multiply
   8,139.35x = 12,209.01 × 2,944.01
4. Step 4: Simplify right side
   8,139.35x = 35,943,386.49
5. Step 5: Solve for x
   x = 35,943,386.49/8,139.35
6. Step 6: Final answer
   x = 4,416.00