Finding the Fourth Proportional to 10,636.28, 15,956.72 and 3,240.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,636.28 : 15,956.72 = 3,240.55 : x
2. Step 2: Convert to fraction form
   10,636.28/15,956.72 = 3,240.55/x
3. Step 3: Cross multiply
   10,636.28x = 15,956.72 × 3,240.55
4. Step 4: Simplify right side
   10,636.28x = 51,708,549.00
5. Step 5: Solve for x
   x = 51,708,549.00/10,636.28
6. Step 6: Final answer
   x = 4,861.53