Finding the Fourth Proportional to 8,999.27, 13,499.55 and 2,758.47

Step by Step Solution

1. Step 1: Write the proportion equation
   8,999.27 : 13,499.55 = 2,758.47 : x
2. Step 2: Convert to fraction form
   8,999.27/13,499.55 = 2,758.47/x
3. Step 3: Cross multiply
   8,999.27x = 13,499.55 × 2,758.47
4. Step 4: Simplify right side
   8,999.27x = 37,238,103.69
5. Step 5: Solve for x
   x = 37,238,103.69/8,999.27
6. Step 6: Final answer
   x = 4,137.90