Finding the Fourth Proportional to 13,949.72, 19,250.61 and 7,662.09

Step by Step Solution

1. Step 1: Write the proportion equation
   13,949.72 : 19,250.61 = 7,662.09 : x
2. Step 2: Convert to fraction form
   13,949.72/19,250.61 = 7,662.09/x
3. Step 3: Cross multiply
   13,949.72x = 19,250.61 × 7,662.09
4. Step 4: Simplify right side
   13,949.72x = 147,499,992.93
5. Step 5: Solve for x
   x = 147,499,992.93/13,949.72
6. Step 6: Final answer
   x = 10,573.69