Finding the Fourth Proportional to 13,395.29, 18,485.41 and 7,426.96

Step by Step Solution

1. Step 1: Write the proportion equation
   13,395.29 : 18,485.41 = 7,426.96 : x
2. Step 2: Convert to fraction form
   13,395.29/18,485.41 = 7,426.96/x
3. Step 3: Cross multiply
   13,395.29x = 18,485.41 × 7,426.96
4. Step 4: Simplify right side
   13,395.29x = 137,290,373.01
5. Step 5: Solve for x
   x = 137,290,373.01/13,395.29
6. Step 6: Final answer
   x = 10,249.15