Finding the Fourth Proportional to 14,109.14, 21,060.69 and 13,081.25

Step by Step Solution

1. Step 1: Write the proportion equation
   14,109.14 : 21,060.69 = 13,081.25 : x
2. Step 2: Convert to fraction form
   14,109.14/21,060.69 = 13,081.25/x
3. Step 3: Cross multiply
   14,109.14x = 21,060.69 × 13,081.25
4. Step 4: Simplify right side
   14,109.14x = 275,500,085.66
5. Step 5: Solve for x
   x = 275,500,085.66/14,109.14
6. Step 6: Final answer
   x = 19,526.36