Finding the Fourth Proportional to 9,021.32, 12,443.94 and 5,486.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,021.32 : 12,443.94 = 5,486.96 : x
2. Step 2: Convert to fraction form
   9,021.32/12,443.94 = 5,486.96/x
3. Step 3: Cross multiply
   9,021.32x = 12,443.94 × 5,486.96
4. Step 4: Simplify right side
   9,021.32x = 68,279,401.02
5. Step 5: Solve for x
   x = 68,279,401.02/9,021.32
6. Step 6: Final answer
   x = 7,568.67