Finding the Fourth Proportional to 1,826,998,496.33, 2,521,259,790.89 and 991,623,239.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,826,998,496.33 : 2,521,259,790.89 = 991,623,239.15 : x
2. Step 2: Convert to fraction form
   1,826,998,496.33/2,521,259,790.89 = 991,623,239.15/x
3. Step 3: Cross multiply
   1,826,998,496.33x = 2,521,259,790.89 × 991,623,239.15
4. Step 4: Simplify right side
   1,826,998,496.33x = 2,500,139,800,580,993,024
5. Step 5: Solve for x
   x = 2,500,139,800,580,993,024/1,826,998,496.33
6. Step 6: Final answer
   x = 1,368,441,082.79