Finding the Fourth Proportional to 11,144.94, 16,719.96 and 3,648.90

Step by Step Solution

1. Step 1: Write the proportion equation
   11,144.94 : 16,719.96 = 3,648.90 : x
2. Step 2: Convert to fraction form
   11,144.94/16,719.96 = 3,648.90/x
3. Step 3: Cross multiply
   11,144.94x = 16,719.96 × 3,648.90
4. Step 4: Simplify right side
   11,144.94x = 61,009,462.04
5. Step 5: Solve for x
   x = 61,009,462.04/11,144.94
6. Step 6: Final answer
   x = 5,474.18