Finding the Fourth Proportional to 11,004.61, 16,510.33 and 3,213.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,004.61 : 16,510.33 = 3,213.42 : x
2. Step 2: Convert to fraction form
   11,004.61/16,510.33 = 3,213.42/x
3. Step 3: Cross multiply
   11,004.61x = 16,510.33 × 3,213.42
4. Step 4: Simplify right side
   11,004.61x = 53,054,659.60
5. Step 5: Solve for x
   x = 53,054,659.60/11,004.61
6. Step 6: Final answer
   x = 4,821.13