Finding the Fourth Proportional to 1,078,643,887.68, 1,488,105,018.36 and 626,444,874.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,078,643,887.68 : 1,488,105,018.36 = 626,444,874.24 : x
2. Step 2: Convert to fraction form
   1,078,643,887.68/1,488,105,018.36 = 626,444,874.24/x
3. Step 3: Cross multiply
   1,078,643,887.68x = 1,488,105,018.36 × 626,444,874.24
4. Step 4: Simplify right side
   1,078,643,887.68x = 932,215,761,082,443,008
5. Step 5: Solve for x
   x = 932,215,761,082,443,008/1,078,643,887.68
6. Step 6: Final answer
   x = 864,247,942.93