Finding the Fourth Proportional to 14,863.46, 20,499.74 and 12,632.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,863.46 : 20,499.74 = 12,632.72 : x
2. Step 2: Convert to fraction form
   14,863.46/20,499.74 = 12,632.72/x
3. Step 3: Cross multiply
   14,863.46x = 20,499.74 × 12,632.72
4. Step 4: Simplify right side
   14,863.46x = 258,967,475.49
5. Step 5: Solve for x
   x = 258,967,475.49/14,863.46
6. Step 6: Final answer
   x = 17,423.09