Finding the Fourth Proportional to 283,768,981.83, 391,601,021.72 and 153,388,789.83

Step by Step Solution

1. Step 1: Write the proportion equation
   283,768,981.83 : 391,601,021.72 = 153,388,789.83 : x
2. Step 2: Convert to fraction form
   283,768,981.83/391,601,021.72 = 153,388,789.83/x
3. Step 3: Cross multiply
   283,768,981.83x = 391,601,021.72 × 153,388,789.83
4. Step 4: Simplify right side
   283,768,981.83x = 60,067,206,817,055,400
5. Step 5: Solve for x
   x = 60,067,206,817,055,400/283,768,981.83
6. Step 6: Final answer
   x = 211,676,436.34