Finding the Fourth Proportional to 2,390,910,917.94, 3,299,539,112.37 and 1,387,252,696.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,390,910,917.94 : 3,299,539,112.37 = 1,387,252,696.50 : x
2. Step 2: Convert to fraction form
   2,390,910,917.94/3,299,539,112.37 = 1,387,252,696.50/x
3. Step 3: Cross multiply
   2,390,910,917.94x = 3,299,539,112.37 × 1,387,252,696.50
4. Step 4: Simplify right side
   2,390,910,917.94x = 4,577,294,530,842,499,072
5. Step 5: Solve for x
   x = 4,577,294,530,842,499,072/2,390,910,917.94
6. Step 6: Final answer
   x = 1,914,456,325.62