Finding the Fourth Proportional to 14,470.08, 21,704.16 and 8,662.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,470.08 : 21,704.16 = 8,662.72 : x
2. Step 2: Convert to fraction form
   14,470.08/21,704.16 = 8,662.72/x
3. Step 3: Cross multiply
   14,470.08x = 21,704.16 × 8,662.72
4. Step 4: Simplify right side
   14,470.08x = 188,017,060.92
5. Step 5: Solve for x
   x = 188,017,060.92/14,470.08
6. Step 6: Final answer
   x = 12,993.51