Finding the Fourth Proportional to 86,016.81, 129,061.80 and 41,676.60

Step by Step Solution

1. Step 1: Write the proportion equation
   86,016.81 : 129,061.80 = 41,676.60 : x
2. Step 2: Convert to fraction form
   86,016.81/129,061.80 = 41,676.60/x
3. Step 3: Cross multiply
   86,016.81x = 129,061.80 × 41,676.60
4. Step 4: Simplify right side
   86,016.81x = 5,378,857,013.88
5. Step 5: Solve for x
   x = 5,378,857,013.88/86,016.81
6. Step 6: Final answer
   x = 62,532.63