Finding the Fourth Proportional to 100,836.68, 150,839.46 and 82,865.00

Step by Step Solution

1. Step 1: Write the proportion equation
   100,836.68 : 150,839.46 = 82,865.00 : x
2. Step 2: Convert to fraction form
   100,836.68/150,839.46 = 82,865.00/x
3. Step 3: Cross multiply
   100,836.68x = 150,839.46 × 82,865.00
4. Step 4: Simplify right side
   100,836.68x = 12,499,311,098.70
5. Step 5: Solve for x
   x = 12,499,311,098.70/100,836.68
6. Step 6: Final answer
   x = 123,956.00