Finding the Fourth Proportional to 1,603,770,144, 2,405,665,844.80 and 621,305,796.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,603,770,144 : 2,405,665,844.80 = 621,305,796.12 : x
2. Step 2: Convert to fraction form
   1,603,770,144/2,405,665,844.80 = 621,305,796.12/x
3. Step 3: Cross multiply
   1,603,770,144x = 2,405,665,844.80 × 621,305,796.12
4. Step 4: Simplify right side
   1,603,770,144x = 1,494,654,132,902,156,544
5. Step 5: Solve for x
   x = 1,494,654,132,902,156,544/1,603,770,144
6. Step 6: Final answer
   x = 931,962,811.81