Finding the Fourth Proportional to 8,012.50, 12,020.26 and 3,081.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,012.50 : 12,020.26 = 3,081.72 : x
2. Step 2: Convert to fraction form
   8,012.50/12,020.26 = 3,081.72/x
3. Step 3: Cross multiply
   8,012.50x = 12,020.26 × 3,081.72
4. Step 4: Simplify right side
   8,012.50x = 37,043,075.65
5. Step 5: Solve for x
   x = 37,043,075.65/8,012.50
6. Step 6: Final answer
   x = 4,623.16