Finding the Fourth Proportional to 16,865.72, 23,274.56 and 9,312.06

Step by Step Solution

1. Step 1: Write the proportion equation
   16,865.72 : 23,274.56 = 9,312.06 : x
2. Step 2: Convert to fraction form
   16,865.72/23,274.56 = 9,312.06/x
3. Step 3: Cross multiply
   16,865.72x = 23,274.56 × 9,312.06
4. Step 4: Simplify right side
   16,865.72x = 216,734,099.19
5. Step 5: Solve for x
   x = 216,734,099.19/16,865.72
6. Step 6: Final answer
   x = 12,850.57