Finding the Fourth Proportional to 158,042,101.87, 218,103,939.98 and 86,519,997.06

Step by Step Solution

1. Step 1: Write the proportion equation
   158,042,101.87 : 218,103,939.98 = 86,519,997.06 : x
2. Step 2: Convert to fraction form
   158,042,101.87/218,103,939.98 = 86,519,997.06/x
3. Step 3: Cross multiply
   158,042,101.87x = 218,103,939.98 × 86,519,997.06
4. Step 4: Simplify right side
   158,042,101.87x = 18,870,352,245,844,016
5. Step 5: Solve for x
   x = 18,870,352,245,844,016/158,042,101.87
6. Step 6: Final answer
   x = 119,400,792.72