Finding the Fourth Proportional to 11,824.72, 17,740.14 and 4,429.76

Step by Step Solution

1. Step 1: Write the proportion equation
   11,824.72 : 17,740.14 = 4,429.76 : x
2. Step 2: Convert to fraction form
   11,824.72/17,740.14 = 4,429.76/x
3. Step 3: Cross multiply
   11,824.72x = 17,740.14 × 4,429.76
4. Step 4: Simplify right side
   11,824.72x = 78,584,562.57
5. Step 5: Solve for x
   x = 78,584,562.57/11,824.72
6. Step 6: Final answer
   x = 6,645.79