Finding the Fourth Proportional to 173,820.10, 260,924.55 and 162,399.10

Step by Step Solution

1. Step 1: Write the proportion equation
   173,820.10 : 260,924.55 = 162,399.10 : x
2. Step 2: Convert to fraction form
   173,820.10/260,924.55 = 162,399.10/x
3. Step 3: Cross multiply
   173,820.10x = 260,924.55 × 162,399.10
4. Step 4: Simplify right side
   173,820.10x = 42,373,912,087.91
5. Step 5: Solve for x
   x = 42,373,912,087.91/173,820.10
6. Step 6: Final answer
   x = 243,780.28