Finding the Fourth Proportional to 151,687,868.58, 209,327,768.37 and 82,071,721.98

Step by Step Solution

1. Step 1: Write the proportion equation
   151,687,868.58 : 209,327,768.37 = 82,071,721.98 : x
2. Step 2: Convert to fraction form
   151,687,868.58/209,327,768.37 = 82,071,721.98/x
3. Step 3: Cross multiply
   151,687,868.58x = 209,327,768.37 × 82,071,721.98
4. Step 4: Simplify right side
   151,687,868.58x = 17,179,890,408,356,480
5. Step 5: Solve for x
   x = 17,179,890,408,356,480/151,687,868.58
6. Step 6: Final answer
   x = 113,258,170.01