Finding the Fourth Proportional to 11,128.88, 16,672.46 and 5,575.73

Step by Step Solution

1. Step 1: Write the proportion equation
   11,128.88 : 16,672.46 = 5,575.73 : x
2. Step 2: Convert to fraction form
   11,128.88/16,672.46 = 5,575.73/x
3. Step 3: Cross multiply
   11,128.88x = 16,672.46 × 5,575.73
4. Step 4: Simplify right side
   11,128.88x = 92,961,024.15
5. Step 5: Solve for x
   x = 92,961,024.15/11,128.88
6. Step 6: Final answer
   x = 8,353.14