Finding the Fourth Proportional to 16,947.81, 23,386.80 and 9,393.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,947.81 : 23,386.80 = 9,393.42 : x
2. Step 2: Convert to fraction form
   16,947.81/23,386.80 = 9,393.42/x
3. Step 3: Cross multiply
   16,947.81x = 23,386.80 × 9,393.42
4. Step 4: Simplify right side
   16,947.81x = 219,682,034.86
5. Step 5: Solve for x
   x = 219,682,034.86/16,947.81
6. Step 6: Final answer
   x = 12,962.27