Finding the Fourth Proportional to 25,310.88, 34,871.72 and 18,225

Step by Step Solution

1. Step 1: Write the proportion equation
   25,310.88 : 34,871.72 = 18,225 : x
2. Step 2: Convert to fraction form
   25,310.88/34,871.72 = 18,225/x
3. Step 3: Cross multiply
   25,310.88x = 34,871.72 × 18,225
4. Step 4: Simplify right side
   25,310.88x = 635,537,005.88
5. Step 5: Solve for x
   x = 635,537,005.88/25,310.88
6. Step 6: Final answer
   x = 25,109.24