Finding the Fourth Proportional to 8,986.60, 12,373.86 and 8,473.96

Step by Step Solution

1. Step 1: Write the proportion equation
   8,986.60 : 12,373.86 = 8,473.96 : x
2. Step 2: Convert to fraction form
   8,986.60/12,373.86 = 8,473.96/x
3. Step 3: Cross multiply
   8,986.60x = 12,373.86 × 8,473.96
4. Step 4: Simplify right side
   8,986.60x = 104,855,594.69
5. Step 5: Solve for x
   x = 104,855,594.69/8,986.60
6. Step 6: Final answer
   x = 11,667.99