Finding the Fourth Proportional to 278,743.96, 384,784.42 and 188,222.52

Step by Step Solution

1. Step 1: Write the proportion equation
   278,743.96 : 384,784.42 = 188,222.52 : x
2. Step 2: Convert to fraction form
   278,743.96/384,784.42 = 188,222.52/x
3. Step 3: Cross multiply
   278,743.96x = 384,784.42 × 188,222.52
4. Step 4: Simplify right side
   278,743.96x = 72,425,093,189.14
5. Step 5: Solve for x
   x = 72,425,093,189.14/278,743.96
6. Step 6: Final answer
   x = 259,826.59