Finding the Fourth Proportional to 149,649, 206,515.89 and 82,581

Step by Step Solution

1. Step 1: Write the proportion equation
   149,649 : 206,515.89 = 82,581 : x
2. Step 2: Convert to fraction form
   149,649/206,515.89 = 82,581/x
3. Step 3: Cross multiply
   149,649x = 206,515.89 × 82,581
4. Step 4: Simplify right side
   149,649x = 17,054,288,712.09
5. Step 5: Solve for x
   x = 17,054,288,712.09/149,649
6. Step 6: Final answer
   x = 113,961.93