Finding the Fourth Proportional to 19,144.34, 28,723.71 and 6,665.30

Step by Step Solution

1. Step 1: Write the proportion equation
   19,144.34 : 28,723.71 = 6,665.30 : x
2. Step 2: Convert to fraction form
   19,144.34/28,723.71 = 6,665.30/x
3. Step 3: Cross multiply
   19,144.34x = 28,723.71 × 6,665.30
4. Step 4: Simplify right side
   19,144.34x = 191,452,144.26
5. Step 5: Solve for x
   x = 191,452,144.26/19,144.34
6. Step 6: Final answer
   x = 10,000.46