Finding the Fourth Proportional to 172,856.82, 238,558.06 and 104,891

Step by Step Solution

1. Step 1: Write the proportion equation
   172,856.82 : 238,558.06 = 104,891 : x
2. Step 2: Convert to fraction form
   172,856.82/238,558.06 = 104,891/x
3. Step 3: Cross multiply
   172,856.82x = 238,558.06 × 104,891
4. Step 4: Simplify right side
   172,856.82x = 25,022,593,471.46
5. Step 5: Solve for x
   x = 25,022,593,471.46/172,856.82
6. Step 6: Final answer
   x = 144,759.08