Finding the Fourth Proportional to 11,121.69, 16,693.95 and 7,449.57

Step by Step Solution

1. Step 1: Write the proportion equation
   11,121.69 : 16,693.95 = 7,449.57 : x
2. Step 2: Convert to fraction form
   11,121.69/16,693.95 = 7,449.57/x
3. Step 3: Cross multiply
   11,121.69x = 16,693.95 × 7,449.57
4. Step 4: Simplify right side
   11,121.69x = 124,362,749.10
5. Step 5: Solve for x
   x = 124,362,749.10/11,121.69
6. Step 6: Final answer
   x = 11,182.00