Finding the Fourth Proportional to 127,986.69, 176,609.37 and 71,401.71

Step by Step Solution

1. Step 1: Write the proportion equation
   127,986.69 : 176,609.37 = 71,401.71 : x
2. Step 2: Convert to fraction form
   127,986.69/176,609.37 = 71,401.71/x
3. Step 3: Cross multiply
   127,986.69x = 176,609.37 × 71,401.71
4. Step 4: Simplify right side
   127,986.69x = 12,610,211,020.02
5. Step 5: Solve for x
   x = 12,610,211,020.02/127,986.69
6. Step 6: Final answer
   x = 98,527.52