Finding the Fourth Proportional to 8,760.27, 12,085.38 and 5,357.43

Step by Step Solution

1. Step 1: Write the proportion equation
   8,760.27 : 12,085.38 = 5,357.43 : x
2. Step 2: Convert to fraction form
   8,760.27/12,085.38 = 5,357.43/x
3. Step 3: Cross multiply
   8,760.27x = 12,085.38 × 5,357.43
4. Step 4: Simplify right side
   8,760.27x = 64,746,577.37
5. Step 5: Solve for x
   x = 64,746,577.37/8,760.27
6. Step 6: Final answer
   x = 7,390.93