Finding the Fourth Proportional to 63,072.66, 86,949.82 and 49,620.56

Step by Step Solution

1. Step 1: Write the proportion equation
   63,072.66 : 86,949.82 = 49,620.56 : x
2. Step 2: Convert to fraction form
   63,072.66/86,949.82 = 49,620.56/x
3. Step 3: Cross multiply
   63,072.66x = 86,949.82 × 49,620.56
4. Step 4: Simplify right side
   63,072.66x = 4,314,498,760.30
5. Step 5: Solve for x
   x = 4,314,498,760.30/63,072.66
6. Step 6: Final answer
   x = 68,405.21