Finding the Fourth Proportional to 16,865.96, 23,274.18 and 9,412.52

Step by Step Solution

1. Step 1: Write the proportion equation
   16,865.96 : 23,274.18 = 9,412.52 : x
2. Step 2: Convert to fraction form
   16,865.96/23,274.18 = 9,412.52/x
3. Step 3: Cross multiply
   16,865.96x = 23,274.18 × 9,412.52
4. Step 4: Simplify right side
   16,865.96x = 219,068,684.73
5. Step 5: Solve for x
   x = 219,068,684.73/16,865.96
6. Step 6: Final answer
   x = 12,988.81