Finding the Fourth Proportional to 12,429.76, 17,153.39 and 6,764.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,429.76 : 17,153.39 = 6,764.82 : x
2. Step 2: Convert to fraction form
   12,429.76/17,153.39 = 6,764.82/x
3. Step 3: Cross multiply
   12,429.76x = 17,153.39 × 6,764.82
4. Step 4: Simplify right side
   12,429.76x = 116,039,595.74
5. Step 5: Solve for x
   x = 116,039,595.74/12,429.76
6. Step 6: Final answer
   x = 9,335.63