Finding the Fourth Proportional to 278,789.99, 384,749.24 and 157,932.27

Step by Step Solution

1. Step 1: Write the proportion equation
   278,789.99 : 384,749.24 = 157,932.27 : x
2. Step 2: Convert to fraction form
   278,789.99/384,749.24 = 157,932.27/x
3. Step 3: Cross multiply
   278,789.99x = 384,749.24 × 157,932.27
4. Step 4: Simplify right side
   278,789.99x = 60,764,320,064.31
5. Step 5: Solve for x
   x = 60,764,320,064.31/278,789.99
6. Step 6: Final answer
   x = 217,957.33