Finding the Fourth Proportional to 149,647.50, 206,513.82 and 82,579.50

Step by Step Solution

1. Step 1: Write the proportion equation
   149,647.50 : 206,513.82 = 82,579.50 : x
2. Step 2: Convert to fraction form
   149,647.50/206,513.82 = 82,579.50/x
3. Step 3: Cross multiply
   149,647.50x = 206,513.82 × 82,579.50
4. Step 4: Simplify right side
   149,647.50x = 17,053,807,998.69
5. Step 5: Solve for x
   x = 17,053,807,998.69/149,647.50
6. Step 6: Final answer
   x = 113,959.86