Finding the Fourth Proportional to 13,290.57, 18,341.82 and 7,322.24

Step by Step Solution

1. Step 1: Write the proportion equation
   13,290.57 : 18,341.82 = 7,322.24 : x
2. Step 2: Convert to fraction form
   13,290.57/18,341.82 = 7,322.24/x
3. Step 3: Cross multiply
   13,290.57x = 18,341.82 × 7,322.24
4. Step 4: Simplify right side
   13,290.57x = 134,303,253.93
5. Step 5: Solve for x
   x = 134,303,253.93/13,290.57
6. Step 6: Final answer
   x = 10,105.15