Finding the Fourth Proportional to 9,287.94, 12,817.54 and 5,561.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,287.94 : 12,817.54 = 5,561.94 : x
2. Step 2: Convert to fraction form
   9,287.94/12,817.54 = 5,561.94/x
3. Step 3: Cross multiply
   9,287.94x = 12,817.54 × 5,561.94
4. Step 4: Simplify right side
   9,287.94x = 71,290,360.62
5. Step 5: Solve for x
   x = 71,290,360.62/9,287.94
6. Step 6: Final answer
   x = 7,675.58