Finding the Fourth Proportional to 162,554.72, 224,320.32 and 90,933.20

Step by Step Solution

1. Step 1: Write the proportion equation
   162,554.72 : 224,320.32 = 90,933.20 : x
2. Step 2: Convert to fraction form
   162,554.72/224,320.32 = 90,933.20/x
3. Step 3: Cross multiply
   162,554.72x = 224,320.32 × 90,933.20
4. Step 4: Simplify right side
   162,554.72x = 20,398,164,522.62
5. Step 5: Solve for x
   x = 20,398,164,522.62/162,554.72
6. Step 6: Final answer
   x = 125,484.91