Finding the Fourth Proportional to 16,962.18, 25,422.34 and 12,298.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,962.18 : 25,422.34 = 12,298.20 : x
2. Step 2: Convert to fraction form
   16,962.18/25,422.34 = 12,298.20/x
3. Step 3: Cross multiply
   16,962.18x = 25,422.34 × 12,298.20
4. Step 4: Simplify right side
   16,962.18x = 312,649,021.79
5. Step 5: Solve for x
   x = 312,649,021.79/16,962.18
6. Step 6: Final answer
   x = 18,432.12