Finding the Fourth Proportional to 12,107.98, 16,710.96 and 7,072.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,107.98 : 16,710.96 = 7,072.16 : x
2. Step 2: Convert to fraction form
   12,107.98/16,710.96 = 7,072.16/x
3. Step 3: Cross multiply
   12,107.98x = 16,710.96 × 7,072.16
4. Step 4: Simplify right side
   12,107.98x = 118,182,580.06
5. Step 5: Solve for x
   x = 118,182,580.06/12,107.98
6. Step 6: Final answer
   x = 9,760.72