Finding the Fourth Proportional to 10,636.37, 15,955.43 and 3,240.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,636.37 : 15,955.43 = 3,240.89 : x
2. Step 2: Convert to fraction form
   10,636.37/15,955.43 = 3,240.89/x
3. Step 3: Cross multiply
   10,636.37x = 15,955.43 × 3,240.89
4. Step 4: Simplify right side
   10,636.37x = 51,709,697.55
5. Step 5: Solve for x
   x = 51,709,697.55/10,636.37
6. Step 6: Final answer
   x = 4,861.59