Finding the Fourth Proportional to 16,871.12, 23,280.88 and 9,796.40

Step by Step Solution

1. Step 1: Write the proportion equation
   16,871.12 : 23,280.88 = 9,796.40 : x
2. Step 2: Convert to fraction form
   16,871.12/23,280.88 = 9,796.40/x
3. Step 3: Cross multiply
   16,871.12x = 23,280.88 × 9,796.40
4. Step 4: Simplify right side
   16,871.12x = 228,068,812.83
5. Step 5: Solve for x
   x = 228,068,812.83/16,871.12
6. Step 6: Final answer
   x = 13,518.30