Finding the Fourth Proportional to 13,064.88, 18,028.93 and 7,399.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,064.88 : 18,028.93 = 7,399.50 : x
2. Step 2: Convert to fraction form
   13,064.88/18,028.93 = 7,399.50/x
3. Step 3: Cross multiply
   13,064.88x = 18,028.93 × 7,399.50
4. Step 4: Simplify right side
   13,064.88x = 133,405,067.54
5. Step 5: Solve for x
   x = 133,405,067.54/13,064.88
6. Step 6: Final answer
   x = 10,210.97