Finding the Fourth Proportional to 11,003.40, 16,504.82 and 3,212.28

Step by Step Solution

1. Step 1: Write the proportion equation
   11,003.40 : 16,504.82 = 3,212.28 : x
2. Step 2: Convert to fraction form
   11,003.40/16,504.82 = 3,212.28/x
3. Step 3: Cross multiply
   11,003.40x = 16,504.82 × 3,212.28
4. Step 4: Simplify right side
   11,003.40x = 53,018,103.19
5. Step 5: Solve for x
   x = 53,018,103.19/11,003.40
6. Step 6: Final answer
   x = 4,818.34