Finding the Fourth Proportional to 9,144.96, 12,615.52 and 5,601.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,144.96 : 12,615.52 = 5,601.92 : x
2. Step 2: Convert to fraction form
   9,144.96/12,615.52 = 5,601.92/x
3. Step 3: Cross multiply
   9,144.96x = 12,615.52 × 5,601.92
4. Step 4: Simplify right side
   9,144.96x = 70,671,133.80
5. Step 5: Solve for x
   x = 70,671,133.80/9,144.96
6. Step 6: Final answer
   x = 7,727.88