Finding the Fourth Proportional to 12,145.92, 16,760.41 and 7,109.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,145.92 : 16,760.41 = 7,109.43 : x
2. Step 2: Convert to fraction form
   12,145.92/16,760.41 = 7,109.43/x
3. Step 3: Cross multiply
   12,145.92x = 16,760.41 × 7,109.43
4. Step 4: Simplify right side
   12,145.92x = 119,156,961.67
5. Step 5: Solve for x
   x = 119,156,961.67/12,145.92
6. Step 6: Final answer
   x = 9,810.45