Finding the Fourth Proportional to 18,141.57, 25,023.33 and 10,966.79

Step by Step Solution

1. Step 1: Write the proportion equation
   18,141.57 : 25,023.33 = 10,966.79 : x
2. Step 2: Convert to fraction form
   18,141.57/25,023.33 = 10,966.79/x
3. Step 3: Cross multiply
   18,141.57x = 25,023.33 × 10,966.79
4. Step 4: Simplify right side
   18,141.57x = 274,425,667.77
5. Step 5: Solve for x
   x = 274,425,667.77/18,141.57
6. Step 6: Final answer
   x = 15,126.90