Finding the Fourth Proportional to 21,893,628,273.82, 30,215,458,908.50 and 13,320,663,535.34

Step by Step Solution

1. Step 1: Write the proportion equation
   21,893,628,273.82 : 30,215,458,908.50 = 13,320,663,535.34 : x
2. Step 2: Convert to fraction form
   21,893,628,273.82/30,215,458,908.50 = 13,320,663,535.34/x
3. Step 3: Cross multiply
   21,893,628,273.82x = 30,215,458,908.50 × 13,320,663,535.34
4. Step 4: Simplify right side
   21,893,628,273.82x = 402,489,961,685,923,266,560
5. Step 5: Solve for x
   x = 402,489,961,685,923,266,560/21,893,628,273.82
6. Step 6: Final answer
   x = 18,383,885,788.69