Finding the Fourth Proportional to 403,608,591,522.72, 556,717,414,291.56 and 258,863,454,077.76

Step by Step Solution

1. Step 1: Write the proportion equation
   403,608,591,522.72 : 556,717,414,291.56 = 258,863,454,077.76 : x
2. Step 2: Convert to fraction form
   403,608,591,522.72/556,717,414,291.56 = 258,863,454,077.76/x
3. Step 3: Cross multiply
   403,608,591,522.72x = 556,717,414,291.56 × 258,863,454,077.76
4. Step 4: Simplify right side
   403,608,591,522.72x = 144,113,792,808,752,554,967,040
5. Step 5: Solve for x
   x = 144,113,792,808,752,554,967,040/403,608,591,522.72
6. Step 6: Final answer
   x = 357,063,243,537.62