Finding the Fourth Proportional to 162,096.65, 243,144.72 and 90,095.35

Step by Step Solution

1. Step 1: Write the proportion equation
   162,096.65 : 243,144.72 = 90,095.35 : x
2. Step 2: Convert to fraction form
   162,096.65/243,144.72 = 90,095.35/x
3. Step 3: Cross multiply
   162,096.65x = 243,144.72 × 90,095.35
4. Step 4: Simplify right side
   162,096.65x = 21,906,208,649.05
5. Step 5: Solve for x
   x = 21,906,208,649.05/162,096.65
6. Step 6: Final answer
   x = 135,142.88