Finding the Fourth Proportional to 16,956.02, 23,400.69 and 9,404.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,956.02 : 23,400.69 = 9,404.72 : x
2. Step 2: Convert to fraction form
   16,956.02/23,400.69 = 9,404.72/x
3. Step 3: Cross multiply
   16,956.02x = 23,400.69 × 9,404.72
4. Step 4: Simplify right side
   16,956.02x = 220,076,937.26
5. Step 5: Solve for x
   x = 220,076,937.26/16,956.02
6. Step 6: Final answer
   x = 12,979.28