Finding the Fourth Proportional to 13,441.98, 18,548.52 and 7,775.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,441.98 : 18,548.52 = 7,775.82 : x
2. Step 2: Convert to fraction form
   13,441.98/18,548.52 = 7,775.82/x
3. Step 3: Cross multiply
   13,441.98x = 18,548.52 × 7,775.82
4. Step 4: Simplify right side
   13,441.98x = 144,229,952.79
5. Step 5: Solve for x
   x = 144,229,952.79/13,441.98
6. Step 6: Final answer
   x = 10,729.81