Finding the Fourth Proportional to 404,462,911.98, 558,544,304.22 and 382,428,055.02

Step by Step Solution

1. Step 1: Write the proportion equation
   404,462,911.98 : 558,544,304.22 = 382,428,055.02 : x
2. Step 2: Convert to fraction form
   404,462,911.98/558,544,304.22 = 382,428,055.02/x
3. Step 3: Cross multiply
   404,462,911.98x = 558,544,304.22 × 382,428,055.02
4. Step 4: Simplify right side
   404,462,911.98x = 213,603,011,900,648,928
5. Step 5: Solve for x
   x = 213,603,011,900,648,928/404,462,911.98
6. Step 6: Final answer
   x = 528,115,200.62