Finding the Fourth Proportional to 7,401.25, 10,213.73 and 4,089.25

Step by Step Solution

1. Step 1: Write the proportion equation
   7,401.25 : 10,213.73 = 4,089.25 : x
2. Step 2: Convert to fraction form
   7,401.25/10,213.73 = 4,089.25/x
3. Step 3: Cross multiply
   7,401.25x = 10,213.73 × 4,089.25
4. Step 4: Simplify right side
   7,401.25x = 41,766,495.40
5. Step 5: Solve for x
   x = 41,766,495.40/7,401.25
6. Step 6: Final answer
   x = 5,643.17