Finding the Fourth Proportional to 470,320,100.09, 705,507,607.92 and 142,806,297.82

Step by Step Solution

1. Step 1: Write the proportion equation
   470,320,100.09 : 705,507,607.92 = 142,806,297.82 : x
2. Step 2: Convert to fraction form
   470,320,100.09/705,507,607.92 = 142,806,297.82/x
3. Step 3: Cross multiply
   470,320,100.09x = 705,507,607.92 × 142,806,297.82
4. Step 4: Simplify right side
   470,320,100.09x = 100,750,929,570,899,296
5. Step 5: Solve for x
   x = 100,750,929,570,899,296/470,320,100.09
6. Step 6: Final answer
   x = 214,217,783.91