Finding the Fourth Proportional to 12,103.53, 18,158.37 and 7,110.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,103.53 : 18,158.37 = 7,110.12 : x
2. Step 2: Convert to fraction form
   12,103.53/18,158.37 = 7,110.12/x
3. Step 3: Cross multiply
   12,103.53x = 18,158.37 × 7,110.12
4. Step 4: Simplify right side
   12,103.53x = 129,108,231.14
5. Step 5: Solve for x
   x = 129,108,231.14/12,103.53
6. Step 6: Final answer
   x = 10,666.99