Finding the Fourth Proportional to 262,369.92, 362,059.76 and 154,974.72

Step by Step Solution

1. Step 1: Write the proportion equation
   262,369.92 : 362,059.76 = 154,974.72 : x
2. Step 2: Convert to fraction form
   262,369.92/362,059.76 = 154,974.72/x
3. Step 3: Cross multiply
   262,369.92x = 362,059.76 × 154,974.72
4. Step 4: Simplify right side
   262,369.92x = 56,110,109,929.27
5. Step 5: Solve for x
   x = 56,110,109,929.27/262,369.92
6. Step 6: Final answer
   x = 213,858.78