Finding the Fourth Proportional to 14,144.88, 19,519.83 and 7,857.30

Step by Step Solution

1. Step 1: Write the proportion equation
   14,144.88 : 19,519.83 = 7,857.30 : x
2. Step 2: Convert to fraction form
   14,144.88/19,519.83 = 7,857.30/x
3. Step 3: Cross multiply
   14,144.88x = 19,519.83 × 7,857.30
4. Step 4: Simplify right side
   14,144.88x = 153,373,160.26
5. Step 5: Solve for x
   x = 153,373,160.26/14,144.88
6. Step 6: Final answer
   x = 10,843.02