Finding the Fourth Proportional to 18,145.50, 27,211.24 and 7,050.72

Step by Step Solution

1. Step 1: Write the proportion equation
   18,145.50 : 27,211.24 = 7,050.72 : x
2. Step 2: Convert to fraction form
   18,145.50/27,211.24 = 7,050.72/x
3. Step 3: Cross multiply
   18,145.50x = 27,211.24 × 7,050.72
4. Step 4: Simplify right side
   18,145.50x = 191,858,834.09
5. Step 5: Solve for x
   x = 191,858,834.09/18,145.50
6. Step 6: Final answer
   x = 10,573.36