Finding the Fourth Proportional to 8,740.55, 12,061.60 and 4,963.71

Step by Step Solution

1. Step 1: Write the proportion equation
   8,740.55 : 12,061.60 = 4,963.71 : x
2. Step 2: Convert to fraction form
   8,740.55/12,061.60 = 4,963.71/x
3. Step 3: Cross multiply
   8,740.55x = 12,061.60 × 4,963.71
4. Step 4: Simplify right side
   8,740.55x = 59,870,208.61
5. Step 5: Solve for x
   x = 59,870,208.61/8,740.55
6. Step 6: Final answer
   x = 6,849.71