Finding the Fourth Proportional to 8,510.50, 12,756.61 and 4,118.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,510.50 : 12,756.61 = 4,118.28 : x
2. Step 2: Convert to fraction form
   8,510.50/12,756.61 = 4,118.28/x
3. Step 3: Cross multiply
   8,510.50x = 12,756.61 × 4,118.28
4. Step 4: Simplify right side
   8,510.50x = 52,535,291.83
5. Step 5: Solve for x
   x = 52,535,291.83/8,510.50
6. Step 6: Final answer
   x = 6,173.00