Finding the Fourth Proportional to 245,501.92, 338,678.22 and 159,454.78

Step by Step Solution

1. Step 1: Write the proportion equation
   245,501.92 : 338,678.22 = 159,454.78 : x
2. Step 2: Convert to fraction form
   245,501.92/338,678.22 = 159,454.78/x
3. Step 3: Cross multiply
   245,501.92x = 338,678.22 × 159,454.78
4. Step 4: Simplify right side
   245,501.92x = 54,003,861,060.89
5. Step 5: Solve for x
   x = 54,003,861,060.89/245,501.92
6. Step 6: Final answer
   x = 219,973.27