Finding the Fourth Proportional to 9,345.83, 13,958.17 and 8,466.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,345.83 : 13,958.17 = 8,466.57 : x
2. Step 2: Convert to fraction form
   9,345.83/13,958.17 = 8,466.57/x
3. Step 3: Cross multiply
   9,345.83x = 13,958.17 × 8,466.57
4. Step 4: Simplify right side
   9,345.83x = 118,177,823.38
5. Step 5: Solve for x
   x = 118,177,823.38/9,345.83
6. Step 6: Final answer
   x = 12,644.98