Finding the Fourth Proportional to 13,411.68, 18,508.05 and 7,443.33

Step by Step Solution

1. Step 1: Write the proportion equation
   13,411.68 : 18,508.05 = 7,443.33 : x
2. Step 2: Convert to fraction form
   13,411.68/18,508.05 = 7,443.33/x
3. Step 3: Cross multiply
   13,411.68x = 18,508.05 × 7,443.33
4. Step 4: Simplify right side
   13,411.68x = 137,761,523.81
5. Step 5: Solve for x
   x = 137,761,523.81/13,411.68
6. Step 6: Final answer
   x = 10,271.76