Finding the Fourth Proportional to 58,546.89, 80,794.56 and 31,689.18

Step by Step Solution

1. Step 1: Write the proportion equation
   58,546.89 : 80,794.56 = 31,689.18 : x
2. Step 2: Convert to fraction form
   58,546.89/80,794.56 = 31,689.18/x
3. Step 3: Cross multiply
   58,546.89x = 80,794.56 × 31,689.18
4. Step 4: Simplify right side
   58,546.89x = 2,560,313,473.70
5. Step 5: Solve for x
   x = 2,560,313,473.70/58,546.89
6. Step 6: Final answer
   x = 43,730.99