Finding the Fourth Proportional to 823,445,401.82, 1,136,374,399.07 and 447,117,849.75

Step by Step Solution

1. Step 1: Write the proportion equation
   823,445,401.82 : 1,136,374,399.07 = 447,117,849.75 : x
2. Step 2: Convert to fraction form
   823,445,401.82/1,136,374,399.07 = 447,117,849.75/x
3. Step 3: Cross multiply
   823,445,401.82x = 1,136,374,399.07 × 447,117,849.75
4. Step 4: Simplify right side
   823,445,401.82x = 508,093,277,826,807,040
5. Step 5: Solve for x
   x = 508,093,277,826,807,040/823,445,401.82
6. Step 6: Final answer
   x = 617,033,353.65