Finding the Fourth Proportional to 8,540.85, 12,817.76 and 5,760.93

Step by Step Solution

1. Step 1: Write the proportion equation
   8,540.85 : 12,817.76 = 5,760.93 : x
2. Step 2: Convert to fraction form
   8,540.85/12,817.76 = 5,760.93/x
3. Step 3: Cross multiply
   8,540.85x = 12,817.76 × 5,760.93
4. Step 4: Simplify right side
   8,540.85x = 73,842,189.31
5. Step 5: Solve for x
   x = 73,842,189.31/8,540.85
6. Step 6: Final answer
   x = 8,645.77