Finding the Fourth Proportional to 5,760.72, 8,636.04 and 4,888.86

Step by Step Solution

1. Step 1: Write the proportion equation
   5,760.72 : 8,636.04 = 4,888.86 : x
2. Step 2: Convert to fraction form
   5,760.72/8,636.04 = 4,888.86/x
3. Step 3: Cross multiply
   5,760.72x = 8,636.04 × 4,888.86
4. Step 4: Simplify right side
   5,760.72x = 42,220,390.51
5. Step 5: Solve for x
   x = 42,220,390.51/5,760.72
6. Step 6: Final answer
   x = 7,329.01