Finding the Fourth Proportional to 8,708.85, 12,018.38 and 4,931.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,708.85 : 12,018.38 = 4,931.69 : x
2. Step 2: Convert to fraction form
   8,708.85/12,018.38 = 4,931.69/x
3. Step 3: Cross multiply
   8,708.85x = 12,018.38 × 4,931.69
4. Step 4: Simplify right side
   8,708.85x = 59,270,839.71
5. Step 5: Solve for x
   x = 59,270,839.71/8,708.85
6. Step 6: Final answer
   x = 6,805.82