Finding the Fourth Proportional to 128,469,131,662.09, 192,682,323,754.43 and 38,910,832,185.06

Step by Step Solution

1. Step 1: Write the proportion equation
   128,469,131,662.09 : 192,682,323,754.43 = 38,910,832,185.06 : x
2. Step 2: Convert to fraction form
   128,469,131,662.09/192,682,323,754.43 = 38,910,832,185.06/x
3. Step 3: Cross multiply
   128,469,131,662.09x = 192,682,323,754.43 × 38,910,832,185.06
4. Step 4: Simplify right side
   128,469,131,662.09x = 7,497,429,564,636,025,323,520
5. Step 5: Solve for x
   x = 7,497,429,564,636,025,323,520/128,469,131,662.09
6. Step 6: Final answer
   x = 58,359,774,582.71