Finding the Fourth Proportional to 185,753.36, 256,340.61 and 105,196.56

Step by Step Solution

1. Step 1: Write the proportion equation
   185,753.36 : 256,340.61 = 105,196.56 : x
2. Step 2: Convert to fraction form
   185,753.36/256,340.61 = 105,196.56/x
3. Step 3: Cross multiply
   185,753.36x = 256,340.61 × 105,196.56
4. Step 4: Simplify right side
   185,753.36x = 26,966,150,360.30
5. Step 5: Solve for x
   x = 26,966,150,360.30/185,753.36
6. Step 6: Final answer
   x = 145,171.81