Finding the Fourth Proportional to 7,820.56, 10,792.28 and 4,283.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,820.56 : 10,792.28 = 4,283.72 : x
2. Step 2: Convert to fraction form
   7,820.56/10,792.28 = 4,283.72/x
3. Step 3: Cross multiply
   7,820.56x = 10,792.28 × 4,283.72
4. Step 4: Simplify right side
   7,820.56x = 46,231,105.68
5. Step 5: Solve for x
   x = 46,231,105.68/7,820.56
6. Step 6: Final answer
   x = 5,911.48