Finding the Fourth Proportional to 12,045.96, 18,081.90 and 10,119.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,045.96 : 18,081.90 = 10,119.24 : x
2. Step 2: Convert to fraction form
   12,045.96/18,081.90 = 10,119.24/x
3. Step 3: Cross multiply
   12,045.96x = 18,081.90 × 10,119.24
4. Step 4: Simplify right side
   12,045.96x = 182,975,085.76
5. Step 5: Solve for x
   x = 182,975,085.76/12,045.96
6. Step 6: Final answer
   x = 15,189.75