Finding the Fourth Proportional to 12,101.36, 16,695.58 and 7,912.04

Step by Step Solution

1. Step 1: Write the proportion equation
   12,101.36 : 16,695.58 = 7,912.04 : x
2. Step 2: Convert to fraction form
   12,101.36/16,695.58 = 7,912.04/x
3. Step 3: Cross multiply
   12,101.36x = 16,695.58 × 7,912.04
4. Step 4: Simplify right side
   12,101.36x = 132,096,096.78
5. Step 5: Solve for x
   x = 132,096,096.78/12,101.36
6. Step 6: Final answer
   x = 10,915.81