Finding the Fourth Proportional to 541,401,679,098.63, 812,129,493,414.03 and 206,042,595,978.15

Step by Step Solution

1. Step 1: Write the proportion equation
   541,401,679,098.63 : 812,129,493,414.03 = 206,042,595,978.15 : x
2. Step 2: Convert to fraction form
   541,401,679,098.63/812,129,493,414.03 = 206,042,595,978.15/x
3. Step 3: Cross multiply
   541,401,679,098.63x = 812,129,493,414.03 × 206,042,595,978.15
4. Step 4: Simplify right side
   541,401,679,098.63x = 167,333,269,093,446,609,534,976
5. Step 5: Solve for x
   x = 167,333,269,093,446,609,534,976/541,401,679,098.63
6. Step 6: Final answer
   x = 309,074,159,821.66