Finding the Fourth Proportional to 162,958.72, 224,870.88 and 99,286.24

Step by Step Solution

1. Step 1: Write the proportion equation
   162,958.72 : 224,870.88 = 99,286.24 : x
2. Step 2: Convert to fraction form
   162,958.72/224,870.88 = 99,286.24/x
3. Step 3: Cross multiply
   162,958.72x = 224,870.88 × 99,286.24
4. Step 4: Simplify right side
   162,958.72x = 22,326,584,160.69
5. Step 5: Solve for x
   x = 22,326,584,160.69/162,958.72
6. Step 6: Final answer
   x = 137,007.61