Finding the Fourth Proportional to 2,153,158,083.88, 3,229,737,122.17 and 517,382,685.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,153,158,083.88 : 3,229,737,122.17 = 517,382,685.88 : x
2. Step 2: Convert to fraction form
   2,153,158,083.88/3,229,737,122.17 = 517,382,685.88/x
3. Step 3: Cross multiply
   2,153,158,083.88x = 3,229,737,122.17 × 517,382,685.88
4. Step 4: Simplify right side
   2,153,158,083.88x = 1,671,010,066,954,656,256
5. Step 5: Solve for x
   x = 1,671,010,066,954,656,256/2,153,158,083.88
6. Step 6: Final answer
   x = 776,074,027.94