Finding the Fourth Proportional to 12,390.92, 17,095.27 and 7,081.95

Step by Step Solution

1. Step 1: Write the proportion equation
   12,390.92 : 17,095.27 = 7,081.95 : x
2. Step 2: Convert to fraction form
   12,390.92/17,095.27 = 7,081.95/x
3. Step 3: Cross multiply
   12,390.92x = 17,095.27 × 7,081.95
4. Step 4: Simplify right side
   12,390.92x = 121,067,847.38
5. Step 5: Solve for x
   x = 121,067,847.38/12,390.92
6. Step 6: Final answer
   x = 9,770.69