Finding the Fourth Proportional to 251,096.72, 346,474.55 and 160,533.05

Step by Step Solution

1. Step 1: Write the proportion equation
   251,096.72 : 346,474.55 = 160,533.05 : x
2. Step 2: Convert to fraction form
   251,096.72/346,474.55 = 160,533.05/x
3. Step 3: Cross multiply
   251,096.72x = 346,474.55 × 160,533.05
4. Step 4: Simplify right side
   251,096.72x = 55,620,615,456.21
5. Step 5: Solve for x
   x = 55,620,615,456.21/251,096.72
6. Step 6: Final answer
   x = 221,510.72