Finding the Fourth Proportional to 9,116.21, 13,673.94 and 2,880.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,116.21 : 13,673.94 = 2,880.71 : x
2. Step 2: Convert to fraction form
   9,116.21/13,673.94 = 2,880.71/x
3. Step 3: Cross multiply
   9,116.21x = 13,673.94 × 2,880.71
4. Step 4: Simplify right side
   9,116.21x = 39,390,597.45
5. Step 5: Solve for x
   x = 39,390,597.45/9,116.21
6. Step 6: Final answer
   x = 4,320.94