Finding the Fourth Proportional to 13,225.37, 18,250.39 and 7,256.91

Step by Step Solution

1. Step 1: Write the proportion equation
   13,225.37 : 18,250.39 = 7,256.91 : x
2. Step 2: Convert to fraction form
   13,225.37/18,250.39 = 7,256.91/x
3. Step 3: Cross multiply
   13,225.37x = 18,250.39 × 7,256.91
4. Step 4: Simplify right side
   13,225.37x = 132,441,401.41
5. Step 5: Solve for x
   x = 132,441,401.41/13,225.37
6. Step 6: Final answer
   x = 10,014.19