Finding the Fourth Proportional to 17,123.30, 25,634.55 and 12,760.10

Step by Step Solution

1. Step 1: Write the proportion equation
   17,123.30 : 25,634.55 = 12,760.10 : x
2. Step 2: Convert to fraction form
   17,123.30/25,634.55 = 12,760.10/x
3. Step 3: Cross multiply
   17,123.30x = 25,634.55 × 12,760.10
4. Step 4: Simplify right side
   17,123.30x = 327,099,421.46
5. Step 5: Solve for x
   x = 327,099,421.46/17,123.30
6. Step 6: Final answer
   x = 19,102.59