Finding the Fourth Proportional to 12,282.69, 18,406.60 and 9,460.85

Step by Step Solution

1. Step 1: Write the proportion equation
   12,282.69 : 18,406.60 = 9,460.85 : x
2. Step 2: Convert to fraction form
   12,282.69/18,406.60 = 9,460.85/x
3. Step 3: Cross multiply
   12,282.69x = 18,406.60 × 9,460.85
4. Step 4: Simplify right side
   12,282.69x = 174,142,081.61
5. Step 5: Solve for x
   x = 174,142,081.61/12,282.69
6. Step 6: Final answer
   x = 14,177.85