Finding the Fourth Proportional to 11,638.49, 16,066.55 and 7,449.17

Step by Step Solution

1. Step 1: Write the proportion equation
   11,638.49 : 16,066.55 = 7,449.17 : x
2. Step 2: Convert to fraction form
   11,638.49/16,066.55 = 7,449.17/x
3. Step 3: Cross multiply
   11,638.49x = 16,066.55 × 7,449.17
4. Step 4: Simplify right side
   11,638.49x = 119,682,400.55
5. Step 5: Solve for x
   x = 119,682,400.55/11,638.49
6. Step 6: Final answer
   x = 10,283.33