Finding the Fourth Proportional to 69,770,061.75, 104,647,107.20 and 18,656,066.37

Step by Step Solution

1. Step 1: Write the proportion equation
   69,770,061.75 : 104,647,107.20 = 18,656,066.37 : x
2. Step 2: Convert to fraction form
   69,770,061.75/104,647,107.20 = 18,656,066.37/x
3. Step 3: Cross multiply
   69,770,061.75x = 104,647,107.20 × 18,656,066.37
4. Step 4: Simplify right side
   69,770,061.75x = 1,952,303,377,258,424.50
5. Step 5: Solve for x
   x = 1,952,303,377,258,424.50/69,770,061.75
6. Step 6: Final answer
   x = 27,981,964.30