Finding the Fourth Proportional to 865,997,897.97, 1,196,063,530.38 and 587,055,145.89

Step by Step Solution

1. Step 1: Write the proportion equation
   865,997,897.97 : 1,196,063,530.38 = 587,055,145.89 : x
2. Step 2: Convert to fraction form
   865,997,897.97/1,196,063,530.38 = 587,055,145.89/x
3. Step 3: Cross multiply
   865,997,897.97x = 1,196,063,530.38 × 587,055,145.89
4. Step 4: Simplify right side
   865,997,897.97x = 702,155,250,320,939,392
5. Step 5: Solve for x
   x = 702,155,250,320,939,392/865,997,897.97
6. Step 6: Final answer
   x = 810,804,797.53