Finding the Fourth Proportional to 991,594,061.39, 1,487,206,096.49 and 401,229,589.73

Step by Step Solution

1. Step 1: Write the proportion equation
   991,594,061.39 : 1,487,206,096.49 = 401,229,589.73 : x
2. Step 2: Convert to fraction form
   991,594,061.39/1,487,206,096.49 = 401,229,589.73/x
3. Step 3: Cross multiply
   991,594,061.39x = 1,487,206,096.49 × 401,229,589.73
4. Step 4: Simplify right side
   991,594,061.39x = 596,711,091,932,204,544
5. Step 5: Solve for x
   x = 596,711,091,932,204,544/991,594,061.39
6. Step 6: Final answer
   x = 601,769,529.65