Finding the Fourth Proportional to 161,929.89, 243,105.31 and 124,516.23

Step by Step Solution

1. Step 1: Write the proportion equation
   161,929.89 : 243,105.31 = 124,516.23 : x
2. Step 2: Convert to fraction form
   161,929.89/243,105.31 = 124,516.23/x
3. Step 3: Cross multiply
   161,929.89x = 243,105.31 × 124,516.23
4. Step 4: Simplify right side
   161,929.89x = 30,270,556,694.18
5. Step 5: Solve for x
   x = 30,270,556,694.18/161,929.89
6. Step 6: Final answer
   x = 186,936.19