Finding the Fourth Proportional to 12,233.42, 16,890.25 and 9,395.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,233.42 : 16,890.25 = 9,395.72 : x
2. Step 2: Convert to fraction form
   12,233.42/16,890.25 = 9,395.72/x
3. Step 3: Cross multiply
   12,233.42x = 16,890.25 × 9,395.72
4. Step 4: Simplify right side
   12,233.42x = 158,696,113.28
5. Step 5: Solve for x
   x = 158,696,113.28/12,233.42
6. Step 6: Final answer
   x = 12,972.34