Finding the Fourth Proportional to 3,538,568.49, 5,309,389.73 and 1,920,480.49

Step by Step Solution

1. Step 1: Write the proportion equation
   3,538,568.49 : 5,309,389.73 = 1,920,480.49 : x
2. Step 2: Convert to fraction form
   3,538,568.49/5,309,389.73 = 1,920,480.49/x
3. Step 3: Cross multiply
   3,538,568.49x = 5,309,389.73 × 1,920,480.49
4. Step 4: Simplify right side
   3,538,568.49x = 10,196,579,401,709.31
5. Step 5: Solve for x
   x = 10,196,579,401,709.31/3,538,568.49
6. Step 6: Final answer
   x = 2,881,554.91