Finding the Fourth Proportional to 10,131.48, 15,198.74 and 3,556.51

Step by Step Solution

1. Step 1: Write the proportion equation
   10,131.48 : 15,198.74 = 3,556.51 : x
2. Step 2: Convert to fraction form
   10,131.48/15,198.74 = 3,556.51/x
3. Step 3: Cross multiply
   10,131.48x = 15,198.74 × 3,556.51
4. Step 4: Simplify right side
   10,131.48x = 54,054,428.35
5. Step 5: Solve for x
   x = 54,054,428.35/10,131.48
6. Step 6: Final answer
   x = 5,335.29