Finding the Fourth Proportional to 9,111.69, 12,574.04 and 5,133.17

Step by Step Solution

1. Step 1: Write the proportion equation
   9,111.69 : 12,574.04 = 5,133.17 : x
2. Step 2: Convert to fraction form
   9,111.69/12,574.04 = 5,133.17/x
3. Step 3: Cross multiply
   9,111.69x = 12,574.04 × 5,133.17
4. Step 4: Simplify right side
   9,111.69x = 64,544,690.68
5. Step 5: Solve for x
   x = 64,544,690.68/9,111.69
6. Step 6: Final answer
   x = 7,083.72