Finding the Fourth Proportional to 162,097.65, 243,146.22 and 90,096.35

Step by Step Solution

1. Step 1: Write the proportion equation
   162,097.65 : 243,146.22 = 90,096.35 : x
2. Step 2: Convert to fraction form
   162,097.65/243,146.22 = 90,096.35/x
3. Step 3: Cross multiply
   162,097.65x = 243,146.22 × 90,096.35
4. Step 4: Simplify right side
   162,097.65x = 21,906,586,938.30
5. Step 5: Solve for x
   x = 21,906,586,938.30/162,097.65
6. Step 6: Final answer
   x = 135,144.38