Finding the Fourth Proportional to 64,910.95, 89,517.06 and 49,804.24

Step by Step Solution

1. Step 1: Write the proportion equation
   64,910.95 : 89,517.06 = 49,804.24 : x
2. Step 2: Convert to fraction form
   64,910.95/89,517.06 = 49,804.24/x
3. Step 3: Cross multiply
   64,910.95x = 89,517.06 × 49,804.24
4. Step 4: Simplify right side
   64,910.95x = 4,458,329,140.33
5. Step 5: Solve for x
   x = 4,458,329,140.33/64,910.95
6. Step 6: Final answer
   x = 68,683.78