Finding the Fourth Proportional to 278,399.20, 384,191.98 and 151,074.84

Step by Step Solution

1. Step 1: Write the proportion equation
   278,399.20 : 384,191.98 = 151,074.84 : x
2. Step 2: Convert to fraction form
   278,399.20/384,191.98 = 151,074.84/x
3. Step 3: Cross multiply
   278,399.20x = 384,191.98 × 151,074.84
4. Step 4: Simplify right side
   278,399.20x = 58,041,741,907.78
5. Step 5: Solve for x
   x = 58,041,741,907.78/278,399.20
6. Step 6: Final answer
   x = 208,483.87