Finding the Fourth Proportional to 150,939.18, 208,282.50 and 82,955.40

Step by Step Solution

1. Step 1: Write the proportion equation
   150,939.18 : 208,282.50 = 82,955.40 : x
2. Step 2: Convert to fraction form
   150,939.18/208,282.50 = 82,955.40/x
3. Step 3: Cross multiply
   150,939.18x = 208,282.50 × 82,955.40
4. Step 4: Simplify right side
   150,939.18x = 17,278,158,100.50
5. Step 5: Solve for x
   x = 17,278,158,100.50/150,939.18
6. Step 6: Final answer
   x = 114,470.99