Finding the Fourth Proportional to 261,168, 360,411.84 and 155,184

Step by Step Solution

1. Step 1: Write the proportion equation
   261,168 : 360,411.84 = 155,184 : x
2. Step 2: Convert to fraction form
   261,168/360,411.84 = 155,184/x
3. Step 3: Cross multiply
   261,168x = 360,411.84 × 155,184
4. Step 4: Simplify right side
   261,168x = 55,930,150,978.56
5. Step 5: Solve for x
   x = 55,930,150,978.56/261,168
6. Step 6: Final answer
   x = 214,153.92