Finding the Fourth Proportional to 59,638, 82,317.72 and 39,766

Step by Step Solution

1. Step 1: Write the proportion equation
   59,638 : 82,317.72 = 39,766 : x
2. Step 2: Convert to fraction form
   59,638/82,317.72 = 39,766/x
3. Step 3: Cross multiply
   59,638x = 82,317.72 × 39,766
4. Step 4: Simplify right side
   59,638x = 3,273,446,453.52
5. Step 5: Solve for x
   x = 3,273,446,453.52/59,638
6. Step 6: Final answer
   x = 54,888.60