Finding the Fourth Proportional to 13,367.82, 18,448.52 and 7,399.74

Step by Step Solution

1. Step 1: Write the proportion equation
   13,367.82 : 18,448.52 = 7,399.74 : x
2. Step 2: Convert to fraction form
   13,367.82/18,448.52 = 7,399.74/x
3. Step 3: Cross multiply
   13,367.82x = 18,448.52 × 7,399.74
4. Step 4: Simplify right side
   13,367.82x = 136,514,214.39
5. Step 5: Solve for x
   x = 136,514,214.39/13,367.82
6. Step 6: Final answer
   x = 10,212.15