Finding the Fourth Proportional to 8,281.89, 12,403.69 and 4,987.73

Step by Step Solution

1. Step 1: Write the proportion equation
   8,281.89 : 12,403.69 = 4,987.73 : x
2. Step 2: Convert to fraction form
   8,281.89/12,403.69 = 4,987.73/x
3. Step 3: Cross multiply
   8,281.89x = 12,403.69 × 4,987.73
4. Step 4: Simplify right side
   8,281.89x = 61,866,256.72
5. Step 5: Solve for x
   x = 61,866,256.72/8,281.89
6. Step 6: Final answer
   x = 7,470.07