Finding the Fourth Proportional to 1,039,708,488.28, 1,559,233,467.42 and 340,038,964.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,039,708,488.28 : 1,559,233,467.42 = 340,038,964.12 : x
2. Step 2: Convert to fraction form
   1,039,708,488.28/1,559,233,467.42 = 340,038,964.12/x
3. Step 3: Cross multiply
   1,039,708,488.28x = 1,559,233,467.42 × 340,038,964.12
4. Step 4: Simplify right side
   1,039,708,488.28x = 530,200,133,082,732,608
5. Step 5: Solve for x
   x = 530,200,133,082,732,608/1,039,708,488.28
6. Step 6: Final answer
   x = 509,950,759.33