Finding the Fourth Proportional to 162,391.74, 224,096.73 and 90,778.42

Step by Step Solution

1. Step 1: Write the proportion equation
   162,391.74 : 224,096.73 = 90,778.42 : x
2. Step 2: Convert to fraction form
   162,391.74/224,096.73 = 90,778.42/x
3. Step 3: Cross multiply
   162,391.74x = 224,096.73 × 90,778.42
4. Step 4: Simplify right side
   162,391.74x = 20,343,147,016.27
5. Step 5: Solve for x
   x = 20,343,147,016.27/162,391.74
6. Step 6: Final answer
   x = 125,272.06