Finding the Fourth Proportional to 7,820.43, 10,792.70 and 5,133.25

Step by Step Solution

1. Step 1: Write the proportion equation
   7,820.43 : 10,792.70 = 5,133.25 : x
2. Step 2: Convert to fraction form
   7,820.43/10,792.70 = 5,133.25/x
3. Step 3: Cross multiply
   7,820.43x = 10,792.70 × 5,133.25
4. Step 4: Simplify right side
   7,820.43x = 55,401,627.28
5. Step 5: Solve for x
   x = 55,401,627.28/7,820.43
6. Step 6: Final answer
   x = 7,084.22