Finding the Fourth Proportional to 8,185.73, 12,256.72 and 4,890.65

Step by Step Solution

1. Step 1: Write the proportion equation
   8,185.73 : 12,256.72 = 4,890.65 : x
2. Step 2: Convert to fraction form
   8,185.73/12,256.72 = 4,890.65/x
3. Step 3: Cross multiply
   8,185.73x = 12,256.72 × 4,890.65
4. Step 4: Simplify right side
   8,185.73x = 59,943,254.16
5. Step 5: Solve for x
   x = 59,943,254.16/8,185.73
6. Step 6: Final answer
   x = 7,322.90