Finding the Fourth Proportional to 64,855.89, 89,501.36 and 36,562.05

Step by Step Solution

1. Step 1: Write the proportion equation
   64,855.89 : 89,501.36 = 36,562.05 : x
2. Step 2: Convert to fraction form
   64,855.89/89,501.36 = 36,562.05/x
3. Step 3: Cross multiply
   64,855.89x = 89,501.36 × 36,562.05
4. Step 4: Simplify right side
   64,855.89x = 3,272,353,016.58
5. Step 5: Solve for x
   x = 3,272,353,016.58/64,855.89
6. Step 6: Final answer
   x = 50,455.76