Finding the Fourth Proportional to 11,760.84, 17,615.34 and 7,134.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,760.84 : 17,615.34 = 7,134.12 : x
2. Step 2: Convert to fraction form
   11,760.84/17,615.34 = 7,134.12/x
3. Step 3: Cross multiply
   11,760.84x = 17,615.34 × 7,134.12
4. Step 4: Simplify right side
   11,760.84x = 125,669,949.40
5. Step 5: Solve for x
   x = 125,669,949.40/11,760.84
6. Step 6: Final answer
   x = 10,685.46