Finding the Fourth Proportional to 11,003.94, 16,506.47 and 3,213.34

Step by Step Solution

1. Step 1: Write the proportion equation
   11,003.94 : 16,506.47 = 3,213.34 : x
2. Step 2: Convert to fraction form
   11,003.94/16,506.47 = 3,213.34/x
3. Step 3: Cross multiply
   11,003.94x = 16,506.47 × 3,213.34
4. Step 4: Simplify right side
   11,003.94x = 53,040,900.31
5. Step 5: Solve for x
   x = 53,040,900.31/11,003.94
6. Step 6: Final answer
   x = 4,820.17