Finding the Fourth Proportional to 10,821.32, 14,934.30 and 6,105.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,821.32 : 14,934.30 = 6,105.96 : x
2. Step 2: Convert to fraction form
   10,821.32/14,934.30 = 6,105.96/x
3. Step 3: Cross multiply
   10,821.32x = 14,934.30 × 6,105.96
4. Step 4: Simplify right side
   10,821.32x = 91,188,238.43
5. Step 5: Solve for x
   x = 91,188,238.43/10,821.32
6. Step 6: Final answer
   x = 8,426.72