Finding the Fourth Proportional to 106,659.82, 159,749.15 and 82,776.56

Step by Step Solution

1. Step 1: Write the proportion equation
   106,659.82 : 159,749.15 = 82,776.56 : x
2. Step 2: Convert to fraction form
   106,659.82/159,749.15 = 82,776.56/x
3. Step 3: Cross multiply
   106,659.82x = 159,749.15 × 82,776.56
4. Step 4: Simplify right side
   106,659.82x = 13,223,485,099.92
5. Step 5: Solve for x
   x = 13,223,485,099.92/106,659.82
6. Step 6: Final answer
   x = 123,978.13