Finding the Fourth Proportional to 13,224.64, 18,250.52 and 7,256.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,224.64 : 18,250.52 = 7,256.56 : x
2. Step 2: Convert to fraction form
   13,224.64/18,250.52 = 7,256.56/x
3. Step 3: Cross multiply
   13,224.64x = 18,250.52 × 7,256.56
4. Step 4: Simplify right side
   13,224.64x = 132,435,993.41
5. Step 5: Solve for x
   x = 132,435,993.41/13,224.64
6. Step 6: Final answer
   x = 10,014.34