Finding the Fourth Proportional to 9,401.48, 12,973.92 and 5,422.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,401.48 : 12,973.92 = 5,422.32 : x
2. Step 2: Convert to fraction form
   9,401.48/12,973.92 = 5,422.32/x
3. Step 3: Cross multiply
   9,401.48x = 12,973.92 × 5,422.32
4. Step 4: Simplify right side
   9,401.48x = 70,348,745.89
5. Step 5: Solve for x
   x = 70,348,745.89/9,401.48
6. Step 6: Final answer
   x = 7,482.73