Finding the Fourth Proportional to 8,501.69, 12,754.76 and 2,658.05

Step by Step Solution

1. Step 1: Write the proportion equation
   8,501.69 : 12,754.76 = 2,658.05 : x
2. Step 2: Convert to fraction form
   8,501.69/12,754.76 = 2,658.05/x
3. Step 3: Cross multiply
   8,501.69x = 12,754.76 × 2,658.05
4. Step 4: Simplify right side
   8,501.69x = 33,902,789.82
5. Step 5: Solve for x
   x = 33,902,789.82/8,501.69
6. Step 6: Final answer
   x = 3,987.77