Finding the Fourth Proportional to 126,456.84, 174,513.98 and 69,871.88

Step by Step Solution

1. Step 1: Write the proportion equation
   126,456.84 : 174,513.98 = 69,871.88 : x
2. Step 2: Convert to fraction form
   126,456.84/174,513.98 = 69,871.88/x
3. Step 3: Cross multiply
   126,456.84x = 174,513.98 × 69,871.88
4. Step 4: Simplify right side
   126,456.84x = 12,193,619,868.88
5. Step 5: Solve for x
   x = 12,193,619,868.88/126,456.84
6. Step 6: Final answer
   x = 96,425.15