Finding the Fourth Proportional to 2,405,655,216, 3,608,498,767.20 and 931,958,694.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,405,655,216 : 3,608,498,767.20 = 931,958,694.18 : x
2. Step 2: Convert to fraction form
   2,405,655,216/3,608,498,767.20 = 931,958,694.18/x
3. Step 3: Cross multiply
   2,405,655,216x = 3,608,498,767.20 × 931,958,694.18
4. Step 4: Simplify right side
   2,405,655,216x = 3,362,971,799,029,851,648
5. Step 5: Solve for x
   x = 3,362,971,799,029,851,648/2,405,655,216
6. Step 6: Final answer
   x = 1,397,944,217.72