Finding the Fourth Proportional to 278,300.42, 384,054.39 and 150,976.04

Step by Step Solution

1. Step 1: Write the proportion equation
   278,300.42 : 384,054.39 = 150,976.04 : x
2. Step 2: Convert to fraction form
   278,300.42/384,054.39 = 150,976.04/x
3. Step 3: Cross multiply
   278,300.42x = 384,054.39 × 150,976.04
4. Step 4: Simplify right side
   278,300.42x = 57,983,010,946.82
5. Step 5: Solve for x
   x = 57,983,010,946.82/278,300.42
6. Step 6: Final answer
   x = 208,346.83