Finding the Fourth Proportional to 6,886.29, 10,323.69 and 3,191.17

Step by Step Solution

1. Step 1: Write the proportion equation
   6,886.29 : 10,323.69 = 3,191.17 : x
2. Step 2: Convert to fraction form
   6,886.29/10,323.69 = 3,191.17/x
3. Step 3: Cross multiply
   6,886.29x = 10,323.69 × 3,191.17
4. Step 4: Simplify right side
   6,886.29x = 32,944,633.86
5. Step 5: Solve for x
   x = 32,944,633.86/6,886.29
6. Step 6: Final answer
   x = 4,784.09