Finding the Fourth Proportional to 2,983,564,438.72, 4,474,047,413.63 and 855,940,685.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,983,564,438.72 : 4,474,047,413.63 = 855,940,685.15 : x
2. Step 2: Convert to fraction form
   2,983,564,438.72/4,474,047,413.63 = 855,940,685.15/x
3. Step 3: Cross multiply
   2,983,564,438.72x = 4,474,047,413.63 × 855,940,685.15
4. Step 4: Simplify right side
   2,983,564,438.72x = 3,829,519,208,622,952,960
5. Step 5: Solve for x
   x = 3,829,519,208,622,952,960/2,983,564,438.72
6. Step 6: Final answer
   x = 1,283,538,293.63