Finding the Fourth Proportional to 41,940.82, 62,891.79 and 15,638.50

Step by Step Solution

1. Step 1: Write the proportion equation
   41,940.82 : 62,891.79 = 15,638.50 : x
2. Step 2: Convert to fraction form
   41,940.82/62,891.79 = 15,638.50/x
3. Step 3: Cross multiply
   41,940.82x = 62,891.79 × 15,638.50
4. Step 4: Simplify right side
   41,940.82x = 983,533,179.72
5. Step 5: Solve for x
   x = 983,533,179.72/41,940.82
6. Step 6: Final answer
   x = 23,450.50