Finding the Fourth Proportional to 1,027,638,341.33, 1,418,142,279.41 and 557,739,662.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,027,638,341.33 : 1,418,142,279.41 = 557,739,662.27 : x
2. Step 2: Convert to fraction form
   1,027,638,341.33/1,418,142,279.41 = 557,739,662.27/x
3. Step 3: Cross multiply
   1,027,638,341.33x = 1,418,142,279.41 × 557,739,662.27
4. Step 4: Simplify right side
   1,027,638,341.33x = 790,954,195,959,061,888
5. Step 5: Solve for x
   x = 790,954,195,959,061,888/1,027,638,341.33
6. Step 6: Final answer
   x = 769,681,476.60