Finding the Fourth Proportional to 709,040,464.02, 978,639,101.43 and 415,779,510.42

Step by Step Solution

1. Step 1: Write the proportion equation
   709,040,464.02 : 978,639,101.43 = 415,779,510.42 : x
2. Step 2: Convert to fraction form
   709,040,464.02/978,639,101.43 = 415,779,510.42/x
3. Step 3: Cross multiply
   709,040,464.02x = 978,639,101.43 × 415,779,510.42
4. Step 4: Simplify right side
   709,040,464.02x = 406,898,086,470,434,112
5. Step 5: Solve for x
   x = 406,898,086,470,434,112/709,040,464.02
6. Step 6: Final answer
   x = 573,871,460.26