Finding the Fourth Proportional to 278,874.50, 384,849.27 and 151,550.10

Step by Step Solution

1. Step 1: Write the proportion equation
   278,874.50 : 384,849.27 = 151,550.10 : x
2. Step 2: Convert to fraction form
   278,874.50/384,849.27 = 151,550.10/x
3. Step 3: Cross multiply
   278,874.50x = 384,849.27 × 151,550.10
4. Step 4: Simplify right side
   278,874.50x = 58,323,945,353.43
5. Step 5: Solve for x
   x = 58,323,945,353.43/278,874.50
6. Step 6: Final answer
   x = 209,140.48