Finding the Fourth Proportional to 13,411.33, 18,507.65 and 7,443.01

Step by Step Solution

1. Step 1: Write the proportion equation
   13,411.33 : 18,507.65 = 7,443.01 : x
2. Step 2: Convert to fraction form
   13,411.33/18,507.65 = 7,443.01/x
3. Step 3: Cross multiply
   13,411.33x = 18,507.65 × 7,443.01
4. Step 4: Simplify right side
   13,411.33x = 137,752,624.03
5. Step 5: Solve for x
   x = 137,752,624.03/13,411.33
6. Step 6: Final answer
   x = 10,271.36