Finding the Fourth Proportional to 243,892.05, 336,423.69 and 161,106.54

Step by Step Solution

1. Step 1: Write the proportion equation
   243,892.05 : 336,423.69 = 161,106.54 : x
2. Step 2: Convert to fraction form
   243,892.05/336,423.69 = 161,106.54/x
3. Step 3: Cross multiply
   243,892.05x = 336,423.69 × 161,106.54
4. Step 4: Simplify right side
   243,892.05x = 54,200,056,669.93
5. Step 5: Solve for x
   x = 54,200,056,669.93/243,892.05
6. Step 6: Final answer
   x = 222,229.70