Finding the Fourth Proportional to 18,492.88, 25,520.17 and 10,109.38

Step by Step Solution

1. Step 1: Write the proportion equation
   18,492.88 : 25,520.17 = 10,109.38 : x
2. Step 2: Convert to fraction form
   18,492.88/25,520.17 = 10,109.38/x
3. Step 3: Cross multiply
   18,492.88x = 25,520.17 × 10,109.38
4. Step 4: Simplify right side
   18,492.88x = 257,992,968.59
5. Step 5: Solve for x
   x = 257,992,968.59/18,492.88
6. Step 6: Final answer
   x = 13,950.94