Finding the Fourth Proportional to 284,162.31, 392,137.98 and 155,096.49

Step by Step Solution

1. Step 1: Write the proportion equation
   284,162.31 : 392,137.98 = 155,096.49 : x
2. Step 2: Convert to fraction form
   284,162.31/392,137.98 = 155,096.49/x
3. Step 3: Cross multiply
   284,162.31x = 392,137.98 × 155,096.49
4. Step 4: Simplify right side
   284,162.31x = 60,819,224,293.69
5. Step 5: Solve for x
   x = 60,819,224,293.69/284,162.31
6. Step 6: Final answer
   x = 214,029.88