Finding the Fourth Proportional to 173,818.10, 260,921.55 and 162,397.10

Step by Step Solution

1. Step 1: Write the proportion equation
   173,818.10 : 260,921.55 = 162,397.10 : x
2. Step 2: Convert to fraction form
   173,818.10/260,921.55 = 162,397.10/x
3. Step 3: Cross multiply
   173,818.10x = 260,921.55 × 162,397.10
4. Step 4: Simplify right side
   173,818.10x = 42,372,903,047.51
5. Step 5: Solve for x
   x = 42,372,903,047.51/173,818.10
6. Step 6: Final answer
   x = 243,777.28