Finding the Fourth Proportional to 3,437,456,019.84, 5,145,906,464.64 and 2,105,289,215.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,437,456,019.84 : 5,145,906,464.64 = 2,105,289,215.28 : x
2. Step 2: Convert to fraction form
   3,437,456,019.84/5,145,906,464.64 = 2,105,289,215.28/x
3. Step 3: Cross multiply
   3,437,456,019.84x = 5,145,906,464.64 × 2,105,289,215.28
4. Step 4: Simplify right side
   3,437,456,019.84x = 10,833,621,382,846,224,384
5. Step 5: Solve for x
   x = 10,833,621,382,846,224,384/3,437,456,019.84
6. Step 6: Final answer
   x = 3,151,639,270.53