Finding the Fourth Proportional to 158,042,100.87, 218,103,938.60 and 86,519,996.06

Step by Step Solution

1. Step 1: Write the proportion equation
   158,042,100.87 : 218,103,938.60 = 86,519,996.06 : x
2. Step 2: Convert to fraction form
   158,042,100.87/218,103,938.60 = 86,519,996.06/x
3. Step 3: Cross multiply
   158,042,100.87x = 218,103,938.60 × 86,519,996.06
4. Step 4: Simplify right side
   158,042,100.87x = 18,870,351,906,819,364
5. Step 5: Solve for x
   x = 18,870,351,906,819,364/158,042,100.87
6. Step 6: Final answer
   x = 119,400,791.33