Finding the Fourth Proportional to 25,107, 34,647.72 and 13,929

Step by Step Solution

1. Step 1: Write the proportion equation
   25,107 : 34,647.72 = 13,929 : x
2. Step 2: Convert to fraction form
   25,107/34,647.72 = 13,929/x
3. Step 3: Cross multiply
   25,107x = 34,647.72 × 13,929
4. Step 4: Simplify right side
   25,107x = 482,608,091.88
5. Step 5: Solve for x
   x = 482,608,091.88/25,107
6. Step 6: Final answer
   x = 19,222.05