Finding the Fourth Proportional to 1,258,036,978.73, 1,887,055,467.48 and 384,638,348.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,258,036,978.73 : 1,887,055,467.48 = 384,638,348.18 : x
2. Step 2: Convert to fraction form
   1,258,036,978.73/1,887,055,467.48 = 384,638,348.18/x
3. Step 3: Cross multiply
   1,258,036,978.73x = 1,887,055,467.48 × 384,638,348.18
4. Step 4: Simplify right side
   1,258,036,978.73x = 725,833,897,940,262,528
5. Step 5: Solve for x
   x = 725,833,897,940,262,528/1,258,036,978.73
6. Step 6: Final answer
   x = 576,957,522.09