Finding the Fourth Proportional to 9,118.94, 12,571.63 and 5,760.07

Step by Step Solution

1. Step 1: Write the proportion equation
   9,118.94 : 12,571.63 = 5,760.07 : x
2. Step 2: Convert to fraction form
   9,118.94/12,571.63 = 5,760.07/x
3. Step 3: Cross multiply
   9,118.94x = 12,571.63 × 5,760.07
4. Step 4: Simplify right side
   9,118.94x = 72,413,422.98
5. Step 5: Solve for x
   x = 72,413,422.98/9,118.94
6. Step 6: Final answer
   x = 7,941.00