Finding the Fourth Proportional to 1,078,643,923.34, 1,488,105,067.62 and 626,444,909.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,078,643,923.34 : 1,488,105,067.62 = 626,444,909.86 : x
2. Step 2: Convert to fraction form
   1,078,643,923.34/1,488,105,067.62 = 626,444,909.86/x
3. Step 3: Cross multiply
   1,078,643,923.34x = 1,488,105,067.62 × 626,444,909.86
4. Step 4: Simplify right side
   1,078,643,923.34x = 932,215,844,947,420,032
5. Step 5: Solve for x
   x = 932,215,844,947,420,032/1,078,643,923.34
6. Step 6: Final answer
   x = 864,247,992.11