Finding the Fourth Proportional to 9,983.86, 14,966.01 and 8,506.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,983.86 : 14,966.01 = 8,506.42 : x
2. Step 2: Convert to fraction form
   9,983.86/14,966.01 = 8,506.42/x
3. Step 3: Cross multiply
   9,983.86x = 14,966.01 × 8,506.42
4. Step 4: Simplify right side
   9,983.86x = 127,307,166.78
5. Step 5: Solve for x
   x = 127,307,166.78/9,983.86
6. Step 6: Final answer
   x = 12,751.30