Finding the Fourth Proportional to 20,405.55, 30,597.71 and 7,256.01

Step by Step Solution

1. Step 1: Write the proportion equation
   20,405.55 : 30,597.71 = 7,256.01 : x
2. Step 2: Convert to fraction form
   20,405.55/30,597.71 = 7,256.01/x
3. Step 3: Cross multiply
   20,405.55x = 30,597.71 × 7,256.01
4. Step 4: Simplify right side
   20,405.55x = 222,017,253.46
5. Step 5: Solve for x
   x = 222,017,253.46/20,405.55
6. Step 6: Final answer
   x = 10,880.24