Finding the Fourth Proportional to 711,139,092,066.54, 981,372,673,354.56 and 385,978,450,915.08

Step by Step Solution

1. Step 1: Write the proportion equation
   711,139,092,066.54 : 981,372,673,354.56 = 385,978,450,915.08 : x
2. Step 2: Convert to fraction form
   711,139,092,066.54/981,372,673,354.56 = 385,978,450,915.08/x
3. Step 3: Cross multiply
   711,139,092,066.54x = 981,372,673,354.56 × 385,978,450,915.08
4. Step 4: Simplify right side
   711,139,092,066.54x = 378,788,704,231,783,917,420,544
5. Step 5: Solve for x
   x = 378,788,704,231,783,917,420,544/711,139,092,066.54
6. Step 6: Final answer
   x = 532,650,656,471.49