Finding the Fourth Proportional to 10,218.69, 15,322.26 and 3,552.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,218.69 : 15,322.26 = 3,552.12 : x
2. Step 2: Convert to fraction form
   10,218.69/15,322.26 = 3,552.12/x
3. Step 3: Cross multiply
   10,218.69x = 15,322.26 × 3,552.12
4. Step 4: Simplify right side
   10,218.69x = 54,426,519.51
5. Step 5: Solve for x
   x = 54,426,519.51/10,218.69
6. Step 6: Final answer
   x = 5,326.17