Finding the Fourth Proportional to 11,379.68, 17,076.72 and 4,454

Step by Step Solution

1. Step 1: Write the proportion equation
   11,379.68 : 17,076.72 = 4,454 : x
2. Step 2: Convert to fraction form
   11,379.68/17,076.72 = 4,454/x
3. Step 3: Cross multiply
   11,379.68x = 17,076.72 × 4,454
4. Step 4: Simplify right side
   11,379.68x = 76,059,710.88
5. Step 5: Solve for x
   x = 76,059,710.88/11,379.68
6. Step 6: Final answer
   x = 6,683.82