Finding the Fourth Proportional to 2,648,759,250.86, 3,973,006,800.64 and 990,544,625.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648,759,250.86 : 3,973,006,800.64 = 990,544,625.98 : x
2. Step 2: Convert to fraction form
   2,648,759,250.86/3,973,006,800.64 = 990,544,625.98/x
3. Step 3: Cross multiply
   2,648,759,250.86x = 3,973,006,800.64 × 990,544,625.98
4. Step 4: Simplify right side
   2,648,759,250.86x = 3,935,440,535,355,944,960
5. Step 5: Solve for x
   x = 3,935,440,535,355,944,960/2,648,759,250.86
6. Step 6: Final answer
   x = 1,485,767,547.23