Finding the Fourth Proportional to 7,391.20, 10,200.72 and 5,792.80

Step by Step Solution

1. Step 1: Write the proportion equation
   7,391.20 : 10,200.72 = 5,792.80 : x
2. Step 2: Convert to fraction form
   7,391.20/10,200.72 = 5,792.80/x
3. Step 3: Cross multiply
   7,391.20x = 10,200.72 × 5,792.80
4. Step 4: Simplify right side
   7,391.20x = 59,090,730.82
5. Step 5: Solve for x
   x = 59,090,730.82/7,391.20
6. Step 6: Final answer
   x = 7,994.74