Finding the Fourth Proportional to 23,189.54, 34,753.55 and 12,105.55

Step by Step Solution

1. Step 1: Write the proportion equation
   23,189.54 : 34,753.55 = 12,105.55 : x
2. Step 2: Convert to fraction form
   23,189.54/34,753.55 = 12,105.55/x
3. Step 3: Cross multiply
   23,189.54x = 34,753.55 × 12,105.55
4. Step 4: Simplify right side
   23,189.54x = 420,710,633.17
5. Step 5: Solve for x
   x = 420,710,633.17/23,189.54
6. Step 6: Final answer
   x = 18,142.26