Finding the Fourth Proportional to 162,996.84, 224,931.78 and 90,399.42

Step by Step Solution

1. Step 1: Write the proportion equation
   162,996.84 : 224,931.78 = 90,399.42 : x
2. Step 2: Convert to fraction form
   162,996.84/224,931.78 = 90,399.42/x
3. Step 3: Cross multiply
   162,996.84x = 224,931.78 × 90,399.42
4. Step 4: Simplify right side
   162,996.84x = 20,333,702,451.57
5. Step 5: Solve for x
   x = 20,333,702,451.57/162,996.84
6. Step 6: Final answer
   x = 124,749.06