Finding the Fourth Proportional to 64,824.89, 89,458.34 and 36,531.59

Step by Step Solution

1. Step 1: Write the proportion equation
   64,824.89 : 89,458.34 = 36,531.59 : x
2. Step 2: Convert to fraction form
   64,824.89/89,458.34 = 36,531.59/x
3. Step 3: Cross multiply
   64,824.89x = 89,458.34 × 36,531.59
4. Step 4: Simplify right side
   64,824.89x = 3,268,054,769.01
5. Step 5: Solve for x
   x = 3,268,054,769.01/64,824.89
6. Step 6: Final answer
   x = 50,413.58