Finding the Fourth Proportional to 12,141.70, 16,756.83 and 7,107.55

Step by Step Solution

1. Step 1: Write the proportion equation
   12,141.70 : 16,756.83 = 7,107.55 : x
2. Step 2: Convert to fraction form
   12,141.70/16,756.83 = 7,107.55/x
3. Step 3: Cross multiply
   12,141.70x = 16,756.83 × 7,107.55
4. Step 4: Simplify right side
   12,141.70x = 119,100,007.07
5. Step 5: Solve for x
   x = 119,100,007.07/12,141.70
6. Step 6: Final answer
   x = 9,809.17