Finding the Fourth Proportional to 14,986.06, 20,671.86 and 9,684.01

Step by Step Solution

1. Step 1: Write the proportion equation
   14,986.06 : 20,671.86 = 9,684.01 : x
2. Step 2: Convert to fraction form
   14,986.06/20,671.86 = 9,684.01/x
3. Step 3: Cross multiply
   14,986.06x = 20,671.86 × 9,684.01
4. Step 4: Simplify right side
   14,986.06x = 200,186,498.96
5. Step 5: Solve for x
   x = 200,186,498.96/14,986.06
6. Step 6: Final answer
   x = 13,358.18