Finding the Fourth Proportional to 9,260.91, 12,784.16 and 5,908.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,260.91 : 12,784.16 = 5,908.12 : x
2. Step 2: Convert to fraction form
   9,260.91/12,784.16 = 5,908.12/x
3. Step 3: Cross multiply
   9,260.91x = 12,784.16 × 5,908.12
4. Step 4: Simplify right side
   9,260.91x = 75,530,351.38
5. Step 5: Solve for x
   x = 75,530,351.38/9,260.91
6. Step 6: Final answer
   x = 8,155.82