Finding the Fourth Proportional to 18,790.56, 28,174.89 and 7,104.69

Step by Step Solution

1. Step 1: Write the proportion equation
   18,790.56 : 28,174.89 = 7,104.69 : x
2. Step 2: Convert to fraction form
   18,790.56/28,174.89 = 7,104.69/x
3. Step 3: Cross multiply
   18,790.56x = 28,174.89 × 7,104.69
4. Step 4: Simplify right side
   18,790.56x = 200,173,859.23
5. Step 5: Solve for x
   x = 200,173,859.23/18,790.56
6. Step 6: Final answer
   x = 10,652.89