Finding the Fourth Proportional to 13,227.68, 18,254.72 and 7,259.55

Step by Step Solution

1. Step 1: Write the proportion equation
   13,227.68 : 18,254.72 = 7,259.55 : x
2. Step 2: Convert to fraction form
   13,227.68/18,254.72 = 7,259.55/x
3. Step 3: Cross multiply
   13,227.68x = 18,254.72 × 7,259.55
4. Step 4: Simplify right side
   13,227.68x = 132,521,016.28
5. Step 5: Solve for x
   x = 132,521,016.28/13,227.68
6. Step 6: Final answer
   x = 10,018.47