Finding the Fourth Proportional to 12,825.54, 17,695.38 and 12,402.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,825.54 : 17,695.38 = 12,402.72 : x
2. Step 2: Convert to fraction form
   12,825.54/17,695.38 = 12,402.72/x
3. Step 3: Cross multiply
   12,825.54x = 17,695.38 × 12,402.72
4. Step 4: Simplify right side
   12,825.54x = 219,470,843.43
5. Step 5: Solve for x
   x = 219,470,843.43/12,825.54
6. Step 6: Final answer
   x = 17,112.02