Finding the Fourth Proportional to 9,021.05, 12,454.43 and 5,666.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,021.05 : 12,454.43 = 5,666.73 : x
2. Step 2: Convert to fraction form
   9,021.05/12,454.43 = 5,666.73/x
3. Step 3: Cross multiply
   9,021.05x = 12,454.43 × 5,666.73
4. Step 4: Simplify right side
   9,021.05x = 70,575,863.78
5. Step 5: Solve for x
   x = 70,575,863.78/9,021.05
6. Step 6: Final answer
   x = 7,823.47