Finding the Fourth Proportional to 57,732.62, 86,626.45 and 39,990.62

Step by Step Solution

1. Step 1: Write the proportion equation
   57,732.62 : 86,626.45 = 39,990.62 : x
2. Step 2: Convert to fraction form
   57,732.62/86,626.45 = 39,990.62/x
3. Step 3: Cross multiply
   57,732.62x = 86,626.45 × 39,990.62
4. Step 4: Simplify right side
   57,732.62x = 3,464,245,443.90
5. Step 5: Solve for x
   x = 3,464,245,443.90/57,732.62
6. Step 6: Final answer
   x = 60,004.99