Finding the Fourth Proportional to 245,118.48, 338,300.33 and 149,680.23

Step by Step Solution

1. Step 1: Write the proportion equation
   245,118.48 : 338,300.33 = 149,680.23 : x
2. Step 2: Convert to fraction form
   245,118.48/338,300.33 = 149,680.23/x
3. Step 3: Cross multiply
   245,118.48x = 338,300.33 × 149,680.23
4. Step 4: Simplify right side
   245,118.48x = 50,636,870,455.07
5. Step 5: Solve for x
   x = 50,636,870,455.07/245,118.48
6. Step 6: Final answer
   x = 206,581.20