Finding the Fourth Proportional to 2,415,907,123.29, 3,333,899,574.72 and 1,398,675,447.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,415,907,123.29 : 3,333,899,574.72 = 1,398,675,447.12 : x
2. Step 2: Convert to fraction form
   2,415,907,123.29/3,333,899,574.72 = 1,398,675,447.12/x
3. Step 3: Cross multiply
   2,415,907,123.29x = 3,333,899,574.72 × 1,398,675,447.12
4. Step 4: Simplify right side
   2,415,907,123.29x = 4,663,043,478,324,673,536
5. Step 5: Solve for x
   x = 4,663,043,478,324,673,536/2,415,907,123.29
6. Step 6: Final answer
   x = 1,930,141,864.05