Finding the Fourth Proportional to 1,826,998,495.33, 2,521,259,789.51 and 991,623,238.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,826,998,495.33 : 2,521,259,789.51 = 991,623,238.15 : x
2. Step 2: Convert to fraction form
   1,826,998,495.33/2,521,259,789.51 = 991,623,238.15/x
3. Step 3: Cross multiply
   1,826,998,495.33x = 2,521,259,789.51 × 991,623,238.15
4. Step 4: Simplify right side
   1,826,998,495.33x = 2,500,139,796,691,293,696
5. Step 5: Solve for x
   x = 2,500,139,796,691,293,696/1,826,998,495.33
6. Step 6: Final answer
   x = 1,368,441,081.41