Finding the Fourth Proportional to 13,223.18, 18,248.82 and 7,255.46

Step by Step Solution

1. Step 1: Write the proportion equation
   13,223.18 : 18,248.82 = 7,255.46 : x
2. Step 2: Convert to fraction form
   13,223.18/18,248.82 = 7,255.46/x
3. Step 3: Cross multiply
   13,223.18x = 18,248.82 × 7,255.46
4. Step 4: Simplify right side
   13,223.18x = 132,403,583.56
5. Step 5: Solve for x
   x = 132,403,583.56/13,223.18
6. Step 6: Final answer
   x = 10,012.99