Finding the Fourth Proportional to 13,291.29, 18,341.90 and 7,322.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,291.29 : 18,341.90 = 7,322.82 : x
2. Step 2: Convert to fraction form
   13,291.29/18,341.90 = 7,322.82/x
3. Step 3: Cross multiply
   13,291.29x = 18,341.90 × 7,322.82
4. Step 4: Simplify right side
   13,291.29x = 134,314,395.54
5. Step 5: Solve for x
   x = 134,314,395.54/13,291.29
6. Step 6: Final answer
   x = 10,105.44