Finding the Fourth Proportional to 108,576.76, 162,624.54 and 83,431.72

Step by Step Solution

1. Step 1: Write the proportion equation
   108,576.76 : 162,624.54 = 83,431.72 : x
2. Step 2: Convert to fraction form
   108,576.76/162,624.54 = 83,431.72/x
3. Step 3: Cross multiply
   108,576.76x = 162,624.54 × 83,431.72
4. Step 4: Simplify right side
   108,576.76x = 13,568,045,086.41
5. Step 5: Solve for x
   x = 13,568,045,086.41/108,576.76
6. Step 6: Final answer
   x = 124,962.70