Finding the Fourth Proportional to 16,411.42, 22,647.27 and 9,338.86

Step by Step Solution

1. Step 1: Write the proportion equation
   16,411.42 : 22,647.27 = 9,338.86 : x
2. Step 2: Convert to fraction form
   16,411.42/22,647.27 = 9,338.86/x
3. Step 3: Cross multiply
   16,411.42x = 22,647.27 × 9,338.86
4. Step 4: Simplify right side
   16,411.42x = 211,499,683.91
5. Step 5: Solve for x
   x = 211,499,683.91/16,411.42
6. Step 6: Final answer
   x = 12,887.35