Finding the Fourth Proportional to 578,826.54, 868,323.78 and 179,499.42

Step by Step Solution

1. Step 1: Write the proportion equation
   578,826.54 : 868,323.78 = 179,499.42 : x
2. Step 2: Convert to fraction form
   578,826.54/868,323.78 = 179,499.42/x
3. Step 3: Cross multiply
   578,826.54x = 868,323.78 × 179,499.42
4. Step 4: Simplify right side
   578,826.54x = 155,863,614,882.21
5. Step 5: Solve for x
   x = 155,863,614,882.21/578,826.54
6. Step 6: Final answer
   x = 269,275.17