Finding the Fourth Proportional to 107,906.10, 161,859.15 and 82,994.10

Step by Step Solution

1. Step 1: Write the proportion equation
   107,906.10 : 161,859.15 = 82,994.10 : x
2. Step 2: Convert to fraction form
   107,906.10/161,859.15 = 82,994.10/x
3. Step 3: Cross multiply
   107,906.10x = 161,859.15 × 82,994.10
4. Step 4: Simplify right side
   107,906.10x = 13,433,354,481.02
5. Step 5: Solve for x
   x = 13,433,354,481.02/107,906.10
6. Step 6: Final answer
   x = 124,491.15