Finding the Fourth Proportional to 151,687,866.58, 209,327,765.61 and 82,071,719.98

Step by Step Solution

1. Step 1: Write the proportion equation
   151,687,866.58 : 209,327,765.61 = 82,071,719.98 : x
2. Step 2: Convert to fraction form
   151,687,866.58/209,327,765.61 = 82,071,719.98/x
3. Step 3: Cross multiply
   151,687,866.58x = 209,327,765.61 × 82,071,719.98
4. Step 4: Simplify right side
   151,687,866.58x = 17,179,889,763,182,996
5. Step 5: Solve for x
   x = 17,179,889,763,182,996/151,687,866.58
6. Step 6: Final answer
   x = 113,258,167.25